Archaic adverb meaning 'clearly' or 'brightly'. Not used in modern Japanese; found only in classical texts.
In classical literature, it was used as in 'the moon shines brightly'.
Archaic adverb meaning 'cleanly' or 'purely'. Also restricted to classical usage.
There is an old expression like 'a purely clean heart'.
clear; fresh; bright
Archaic kanji spelling for the adverb さや. The reading さや is not standard for this kanji in modern Japanese.
Alternate archaic kanji spelling for the same adverb.
The historical derivation is uncertain. The kanji 明 and 清 are conventionally associated with the meanings 'bright/clear' and 'pure/clean', respectively.