Iroha | EPFL Graph Search

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The Iroha is a Japanese poem. Originally the poem was attributed to Kūkai, the founder of Shingon Buddhism, but more modern research has found the date of composition to be later in the Heian period (794–1179). The first record of its existence dates from 1079. It is famous because it is a perfect pangram, containing each character of the Japanese syllabary exactly once. Because of this, it is also used as an ordering for the syllabary, in the same way as the A, B, C, D... sequence of the Latin alphabet. The first appearance of the Iroha, in Konkōmyōsaishōōkyō Ongi was in seven lines: six with seven morae each, and one with five. It was also written in man'yōgana. 以呂波耳本部止千利奴流乎和加餘多連曽津祢那良牟有為能於久耶万計不己衣天阿佐伎喩女美之恵比毛勢須 Structurally, however, the poem follows the standard 7–5 pattern of Japanese poetry (with one hypometric line), and in modern times it is generally written that way, in contexts where line breaks are used. The text of the poem in hiragana (with archaic ゐ and ゑ but without voiced consonant marks) is: Note that: Archaic, obsolete, and historical hiragana uses ゐ (historic Japanese wi, modern i) and ゑ (historic Japanese we, modern e), which are now only used in proper names and certain Okinawan orthographies. Modern writing uses voiced consonant marks (with dakuten). This is used as an indicator of sound changes in the spoken Japanese language in the Heian era. The consonant /h/ in Japanese (a voiceless glottal fricative) was historically pronounced as /ɸ/ (a voiceless bilabial fricative) before the occurrence of the so-called hagyō tenko (“'H'-row (kana) sound shift”, ). Due to phonological changes over history, the pangram poem no longer matches today's pronunciation of modern kana. The syllable e (spelt え & 衣) and ye had merged into /je/ in the 10th century, slightly before the poem was written down in 1079. Note 1: The verb form 酔い ("being intoxicated; intoxication") may be read in modern kana pronunciation as either ei, the archaic pronunciation based on the original kana spelling ゑひ (wefi in Classical Japanese), or as yoi, the modern reading after sound changes caused the base verb form eu to shift to you.

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Related concepts (4)

Japanese writing system

The modern Japanese writing system uses a combination of logographic kanji, which are adopted Chinese characters, and syllabic kana. Kana itself consists of a pair of syllabaries: hiragana, used primarily for native or naturalised Japanese words and grammatical elements; and katakana, used primarily for foreign words and names, loanwords, onomatopoeia, scientific names, and sometimes for emphasis. Almost all written Japanese sentences contain a mixture of kanji and kana.

Japanese dictionary

have a history that began over 1300 years ago when Japanese Buddhist priests, who wanted to understand Chinese sutras, adapted Chinese character dictionaries. Present-day Japanese lexicographers are exploring computerized editing and electronic dictionaries. According to Nakao Keisuke (中尾啓介): It has often been said that dictionary publishing in Japan is active and prosperous, that Japanese people are well provided for with reference tools, and that lexicography here, in practice as well as in research, has produced a number of valuable reference books together with voluminous academic studies.

Japanese poetry

Japanese poetry is poetry typical of Japan, or written, spoken, or chanted in the Japanese language, which includes Old Japanese, Early Middle Japanese, Late Middle Japanese, and Modern Japanese, as well as poetry in Japan which was written in the Chinese language or ryūka from the Okinawa Islands: it is possible to make a more accurate distinction between Japanese poetry written in Japan or by Japanese people in other languages versus that written in the Japanese language by speaking of Japanese-language p