also: ひめもす
adverb
Poetic or literary adverb meaning 'from morning till night'. In modern Japanese, 一日中 (いちにちじゅう) is the everyday equivalent.
ひねもすのたりのたりかな。
All day long, gently, gently. (classic haiku by Yosa Buson)
ひねもす読書にふけった。
I spent the whole day absorbed in reading.
Gikun/jukujikun reading; this kanji form is normally read しゅうじつ. Use only in poetic or literary contexts.
Obsolete kana variant; not used in modern Japanese.
Derived from 日 (hi) 'day' + も (mo) 'even' + す (su), an old verb meaning 'to do' or 'to pass'. The exact historical development is uncertain, but it expresses the idea of 'doing (something) all day long'. The variant ひめもす is an older form.