noun
Archaic word for small fish or fry. In modern Japanese, 小魚 is normally read こざかな and is the standard term.
古い文献では「いさな」が小魚を指すことがある。
In old texts, いさな can refer to small fish.
Modern standard word for small fish, using the same kanji but a different reading.
The historical derivation is uncertain. The kanji 小魚 literally mean 'small fish', but the reading いさな is archaic and its origin is unclear.