noun, noun or participle which takes 'suru'
Rare literary noun or suru-verb meaning praise or commendation. In modern Japanese, 称賛 or 賞賛 are far more common.
古い文章で「讃賞に値する」という表現を見かけることがある。
In old texts, you may come across the expression 'worthy of praise' using 讃賞.
The kanji 讃 means 'praise' and 賞 means 'prize' or 'praise', together forming a compound meaning 'praise'. The exact historical derivation is uncertain, but it is a rare variant of the more common 称賛/賞賛.