longing for a fire in autumn's chill
A poetic, somewhat literary noun expressing the desire for the warmth of a fire as the autumn cold sets in. Not an everyday word; often found in haiku or seasonal writing.
As autumn deepens, the longing for a fire grows stronger.
Standard kanji spelling; the し is an old adjective ending, but the word is used as a noun.
Mixed kana-kanji spelling; less common but still encountered.
Compound of 火 (hi, 'fire') + 恋し (koishi, the classical adjective meaning 'longed for'). The exact historical derivation is uncertain, but the word is conventionally associated with the autumnal desire for warmth.