Snug
late 16th century (originally in nautical use in the sense ‘shipshape, compact, prepared for bad weather’): probably of Low German or Dutch origin.
wiktionary
From dialectal English snug(“tight, handsome”), perhaps from Old Norse snøggr, from Proto-Germanic *snawwuz(“short, quick, fast”). Compare Icelandic snöggur(“smooth”), Danish snög(“neat”), Swedish snygg(“clean, handsome”).
etymonline
snug (adj.)
1590s, "compact, trim" (of a ship), especially "protected from the weather," perhaps from a Scandinavian source such as Old Norse snoggr "short-haired," Old Swedish snygg, Old Danish snøg "neat, tidy," perhaps from PIE *kes- (1) "to scratch" (see xyster). Sense of "in a state of ease or comfort" first recorded 1620s. Meaning "fit closely" is first found 1838. Expression snug as a bug in a rug attested by 1769; earlier snug as a bee in a box (1706).
