1550s, "small piece of cut-out cloth," probably from Dutch or Low German snippen "to snip, shred," of imitative origin. Meaning "cut made by scissors" is from 1590s. As a nickname or cant word for a tailor, 1590s. Snip-snap-snorum, the card game, is 1755, from Low German.
adjective suffix, "full of or characterized by," from Old English -ig, from Proto-Germanic *-iga- (source also of Dutch, Danish, German -ig, Gothic -egs), from PIE -(i)ko-, adjectival suffix, cognate with elements in Greek -ikos, Latin -icus (see -ic). Originally added to nouns in Old English; used from 13c. with verbs, and by 15c. even with other adjectives (for example crispy).
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Harper, D. (n.d.). Etymology of snippy. Online Etymology Dictionary. Retrieved $(datetime), from https://www.etymonline.com/word/snippy