iroha order; traditional Japanese syllabary order
Refers to the ordering of kana based on the iroha poem, as opposed to the modern gojūon order. Often used in indexes, dictionaries, or lists that follow this traditional sequence.
See also: 五十音順
The index of this dictionary is arranged in iroha order.
Please explain the difference between iroha order and gojūon order.
五十音順 is the modern standard kana ordering (a, i, u, e, o…), while いろは順 is the traditional ordering based on the iroha poem.
Standard kanji-kana mixed spelling.
Katakana variant of the いろは portion, sometimes used for emphasis or in technical contexts.
Rarely used kanji form.
From いろは (iroha, the traditional ordering poem) + 順 (じゅん, order). The iroha poem itself is a well-known pangrammic Buddhist verse.