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以降 (いこう) Japanese meaning | Kotomora

以い降こう

い

こ

う

Common wordJLPTN3Freq.FrequencyTop 2,000

Meanings

1

noun, adverb

on and after; from ... onward; since

Used after a time or event noun to mean 'from that point forward'. Common in formal and written contexts.

来らい月げつ以い降こうの予よ定ていを確かく認にんしてください。
Please check the schedule for next month onward.
この日ひ以い降こう、彼かれは一

いち

度ど

も

遅ち

刻こく

し

て

い

ない

。

Since that day, he has never been late.

Written forms

以い降こうUsage100%
Standard kanji form; high priority.
已い降こう
rarely-used kanji form
Rarely used kanji form.

Kanji

以by means of, because, in view of
降descend, precipitate, fall
已stop, halt, previously

Similar words

以い後ご
以後 is more common in spoken Japanese and often means 'after this' or 'from now on', while 以降 is slightly more formal and used for specific time points.
以い来らい
以来 means 'since' and emphasizes the continuous state from a past event to the present; 以降 simply marks a starting point without implying continuity.

Etymology

Compound of 以 (from, by means of) and 降 (descend, go down), literally 'from this point descending'. The kanji combination is conventional for expressing temporal or sequential progression.