Meaning

noun sewing that repairs a worn or torn hole (especially in a garment)

noun the act of putting something in working order again

verb restore by replacing a part or putting together what is torn or broken

originFrom mend (noun, verb) + -s (suffix forming pluralia tantum, regular plurals of nouns, and the third-person singular indicative present tense of verbs).

Etymology from Wiktionary, CC BY-SA 3.0