出典:Wiktionary
出典:『Wiktionary』 (2025/09/02 20:12 UTC 版)
From moss + grown. Sense 2 (“old; old-fashioned, out of date”) refers to the fact that moss will often grow on an object that has remained outdoors in one place for some time.
moss-grown (comparative more moss-grown, superlative most moss-grown)