The story
- Old Norse · borrowed fromsnópa“to idle about dismally”
- Dutch · borrowed fromsnoepen“to pry, eat in secret, sneak”
- English todaysnoop
From Dutch snoepen (“to pry, eat in secret, sneak”) or maybe Old Norse snópa (“to idle about dismally”), or (“to use a blood found”). Related to Dutch and Low German snappen (“to bite, seize”), Dutch snavel (“beak, bill, pecker, neb”), German Schnabel (“beak, bill, mouth”). More at snap.
Etymology from Wiktionary, CC BY-SA 4.0.