snare (n.1)

"noose for catching animals," late Old English, from a Scandinavian source such as Old Norse snara "noose, snare," related to soenri "twisted rope," from Proto-Germanic *snarkho (source also of Middle Dutch snare, Dutch snaar, Old High German snare, German Schnur "noose, cord," Old English snear "a string, cord"). Figuratively from c. 1300.

snare (n.2)

"string across a drum," 1680s, probably from Dutch snaar "string," from same source as snare (n.1). From 1938 as short for snare-drum (1873).

snare (v.)

late 14c., "to ensnare," from snare (n.1). Related: Snared; snaring.

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Definitions of snare from WordNet
snare (n.)
something (often something deceptively attractive) that catches you unawares;
it was all a snare and delusion
Synonyms: trap
snare (n.)
a small drum with two heads and a snare stretched across the lower head;
Synonyms: snare drum / side drum
snare (n.)
a surgical instrument consisting of wire hoop that can be drawn tight around the base of polyps or small tumors to sever them; used especially in body cavities;
snare (n.)
strings stretched across the lower head of a snare drum; they make a rattling sound when the drum is hit;
snare (n.)
a trap for birds or small mammals; often has a slip noose;
Synonyms: gin / noose
snare (v.)
catch in or as if in a trap;
Synonyms: trap / entrap / ensnare / trammel
snare (v.)
entice and trap;
The car salesman had snared three potential customers
Synonyms: hook