shuck

Origin unknown. Possibly a dialectal survival of unrecorded Middle English schulk(e), schullok (“small shell”); either from Old English sċylluc, sċylloc, diminutive of Old English sċyll (“shell”), or alternatively created in Middle English from Middle English schulle, schelle (“shell, husk, pod”) + -ok, making it equivalent to shell + -ock (diminutive suffix) or shell + -k (diminutive suffix).

From a dialectal variant of shock.