Spry

google

ref

mid 18th century: of unknown origin.

wiktionary

ref

From British dialectal sprey, from Old Norse sprækr(“nimble, lively”) from Proto-Germanic *sprēkiz(“lively”), from Proto-Indo-European *(s)pereg-(“to strew, jerk, sprinkle, scatter”). Cognate with Icelandic sprækur(“lively, spry”), Norwegian sprek(“lively, healthy”), dialectal Swedish sprygg(“brisk, very active, skittish”). More at spark. Related to sprack, sprig, sprug, freckle.

etymonline

ref

spry (adj.)

1746, "active, nimble, vigorous, lively," dialectal, perhaps a shortening and alteration of sprightly [Barnhart], or from a Scandinavian source (compare Old Norse sprækr, dialectal Swedish sprygg "brisk, active"), from Proto-Germanic *sprek-, perhaps from PIE root *sper- "to spread, to sow" (see sparse).