Mossy \Moss"y\, a. [Compar. {Mossier}; superl. {Mossiest}.] 1. Overgrown with moss; abounding with or edged with moss; as, mossy trees; mossy streams. [1913 Webster] Old trees are more mossy far than young. --Bacon. [1913 Webster] 2. Resembling moss; as, mossy green. [1913 Webster]