出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2013/02/16 22:04:12」(JST)
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Gは、ラテン文字(アルファベット)の7番目の文字。小文字は g 。C同様、ギリシャ文字のΓ(ガンマ)に由来し、キリル文字のГに相当する。エトルリア語に必要のなかった無声/k/、有声/g/の区別を付けるために、Cにヒゲを付けて字を作り、当時必要なかったΖ(ゼータ、今日のラテン文字のZ)の位置に置いたものである。
目次
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大文字は、本来は、Cの右下の終端から真下にデセンダー(ベースラインの下)までステム(縦棒)を伸ばして左下へ払った字形である。なお、「I」から「J」を作ったのも同じ字形変化である。
近代にはステムは短くなり、ベースラインにも達しないようになった。また、Cの最後から下におろすのではなく、円弧の最後の部分と一体化することも多い。
ステムの上端にはセリフ(Iの上端などにある短く細い横棒)がある。サンセリフでは通常セリフは表さないが、Gに関してはステムのセリフを強調し、エジプシャン(セリフをステムと同じ太さで、つまり「I」を「エ」のように書くフォント)のように表現する。この場合、ステム自体は省略し、セリフの横棒だけを書くことも多い。
フラクトゥールでは。
大文字の筆記体では、Cの右下の終端に、縦棒を下に付け、ベースラインの下にはみ出して左に回転し、しばしばそのまま右上に伸びて縦棒を突き抜ける形が取られることがある。
小文字では、ステムはcの最後から伸ばすのではなく、xハイト(小文字のxの高さ)から下に伸ばす。そのため、cのカウンター(線に囲まれた空白部分)は完全に閉じる。フラクトゥールのもそうである。
小文字では、しばしば下に降りる縦線が左に大きく湾曲し、印刷書体に使われる。
この文字が表す音声は、[g]ないしその類似音である。
ウィクショナリーにGの項目があります。 |
ウィクショナリーにgの項目があります。 |
大文字 | Unicode | JIS X 0213 | 文字参照 | 小文字 | Unicode | JIS X 0213 | 文字参照 | 備考 |
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G | U+0047 |
1-3-39 | G G |
g | U+0067 |
1-3-71 | g g |
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G | U+FF27 |
1-3-39 | G G |
g | U+FF47 |
1-3-71 | g g |
全角 |
文字 | Unicode | JIS X 0213 | 文字参照 | 備考 |
---|---|---|---|---|
ɡ | U+0261 |
1-10-89 | ɡ ɡ |
IPA |
ɢ | U+0262 |
‐ | ɢ ɢ |
IPA |
ウィキメディア・コモンズには、Gに関連するカテゴリがあります。 |
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Cursive script 'g' and capital 'G'.
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G (named gee /ˈdʒiː/)[1] is the seventh letter in the ISO basic Latin alphabet.
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The letter 'G' was introduced in the Old Latin period as a variant 'c' to distinguish voiced /ɡ/ from voiceless /k/. The recorded originator of 'g' is freedman Spurius Carvilius Ruga, the first Roman to open a fee-paying school, who taught around 230 BC. At this time, 'k' had fallen out of favor, and 'c', which had formerly represented both /ɡ/ and /k/ before open vowels, had come to express /k/ in all environments.
Ruga's positioning of 'g' shows that alphabetic order, related to the letters' values as Greek numerals, was a concern even in the 3rd century BC. Sampson (1985) suggests that: "Evidently the order of the alphabet was felt to be such a concrete thing that a new letter could be added in the middle only if a 'space' was created by the dropping of an old letter."[2] According to some records, the original seventh letter, 'z', had been purged from the Latin alphabet somewhat earlier in the 3rd century BC by the Roman censor Appius Claudius, who found it distasteful and foreign.[3]
Eventually, both velar consonants /k/ and /ɡ/ developed palatalized allophones before front vowels; consequently in today's Romance languages, 'c' and 'g' have different sound values depending on context. Because of French influence, English orthography shares this feature.
The modern lowercase 'g' has two typographic variants: the single-story (sometimes opentail) '' and the double-story (sometimes looptail) ''. The single-story form derives from the majuscule (uppercase) form by raising the serif that distinguishes it from 'c' to the top of the loop, thus closing the loop, and extending the vertical stroke downward and to the left. The double-story form (g) had developed similarly, except that some ornate forms then extended the tail back to the right, and to the left again, forming a closed bowl or loop. The initial extension to the right was absorbed into the upper closed bowl. The double-story version became popular when printing switched to "Roman type" because the tail was effectively shorter, making it possible to put more lines on a page. In the double-story version, a small top stroke in the upper-right, often terminating in an orb shape, is called an "ear".
Generally, the two forms are complementary, but occasionally the difference has been exploited to provide contrast. The 1949 Principles of the International Phonetic Association recommends using for advanced voiced velar plosives (denoted by Latin small letter script G) and for regular ones where the two are contrasted, but this suggestion was never accepted by phoneticians in general,[citation needed] and today '' is the symbol used in the International Phonetic Alphabet, with '' acknowledged as an acceptable variant, and is more often used in printed materials.[citation needed]
In English, the letter appears either alone or in some digraphs. Alone, it represents
The digraph 'dg' represents
The digraph 'ng' represents either
The digraph 'gh' (which mostly came about when the letter yogh was removed from the alphabet taking various values including /ɡ/, /ɣ/, /x/ and /j/) now represents a great variety of values, including
The digraph 'gn' may represent
In words of Romance origin, 'g' is mainly soft before 'e', 'i', and 'y' and hard otherwise, although it is soft in algae, gaol, margarine, and an alternative pronunciation of vegan. While the soft value of 'g' varies in different Romance languages (/ʒ/ in French and Portuguese, [(d)ʑ] in Catalan, /d͡ʒ/ in Italian and Romanian, and /x/ in some Spanish dialects, and /h/ in other dialects), in all except Romanian and Italian, soft 'g' has the same pronunciation as the 'j'.
In Italian and Romanian, 'gh' is used to represent /ɡ/ before front vowels where 'g' would otherwise represent a soft value. In Italian and French, 'gn' is used to represent the palatal nasal /ɲ/, a sound somewhat similar to the 'ny' in English canyon. In Italian, the trigraph 'gli', when appearing before a vowel, represents the palatal lateral approximant /ʎ/; in the definite article and pronoun gli /ʎi/, the digraph 'gl' represents the same sound.
There are many English words of non-Romance origin where 'g' is hard though followed by 'e' or 'i' (e.g. get, gift), and a few in which 'g' is soft though followed by 'a' (margarine). Non-Romance languages typically use 'g' to represent /ɡ/ regardless of position.
Amongst European languages Dutch is an exception as it does not have /ɡ/ in its native words, and instead 'g' represents a voiced velar fricative /ɣ/, a sound that does not occur in modern English. Faroese uses 'g' to represent /dʒ/, in addition to /ɡ/, and also uses it to indicate a glide.
In Maori (Te Reo Māori), 'g' is used in the combination 'ng' which represents the velar nasal /ŋ/ and is pronounced like the 'ng' in singer.
In older Czech and Slovak orthographies, 'g' was used to represent /j/, while /ɡ/ was written as 'ǧ' (g with caron).
Strictly speaking, the letter 'g' is not present in other scripts, but the sound it represents is present in many world languages, and is represented by many different graphemes.
The Cyrillic script analogue is marked as 'г' (e.g. in Russian, Bulgarian, Macedonian, Serbian, etc.) or 'ґ' (in Ukrainian as additional letter with a slightly different pronunciation). The Hebrew analogue is gimel 'ג'. Devanagari has forms for both aspirated and un-aspirated 'g' sounds. (घ,ग)
Classical Arabic did not have plain /ɡ/ in its native words (the palatalized form /ɡʲ/ or /ɟ/ is believed to have been used), but the sound is standard in Modern Standard Arabic in Egypt, so as [ɡ] is the standard sound in Egyptian Arabic, in which loanwords are normally transcribed with 'ج' (Gīm). However, foreign words containing /ɡ/ may be transcribed using other letters, such as: گ (Gāf, not part of standard letters), ق (qāf), ك (kāf), غ (Ghain) in loanwords or in varieties of Arabic, but not in Egypt, because 'ج' is normally pronounced [ɡ] in all cases.
Character | G | g | ||
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Unicode name | LATIN CAPITAL LETTER G | LATIN SMALL LETTER G | ||
Encodings | decimal | hex | decimal | hex |
Unicode | 71 | U+0047 | 103 | U+0067 |
UTF-8 | 71 | 47 | 103 | 67 |
Numeric character reference | G | G | g | g |
EBCDIC family | 199 | C7 | 135 | 87 |
ASCII 1 | 71 | 47 | 103 | 67 |
NATO phonetic | Morse code |
Golf | ––· |
Signal flag | Flag semaphore | Braille |
The ISO basic Latin alphabet
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Aa | Bb | Cc | Dd | Ee | Ff | Gg | Hh | Ii | Jj | Kk | Ll | Mm | Nn | Oo | Pp | Rr | Ss | Tt | Uu | Vv | Ww | Xx | Yy | Zz | ||
Letter G with diacritics
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Ǵǵ | Ğğ | Ĝĝ | Ǧǧ | Ġġ | Ģģ | Ḡḡ | Ǥǥ | Ɠɠ | ᶃ | |||||||||||||||||
Related
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