Merriam-Webster's Collegiate® Dictionary, 11th Edition
NECK
I. noun
Etymology: Middle English nekke, from Old English hnecca; akin to Old High German hnac nape Date: before 12th century
1. a. the part of an animal that connects the head with the body, the siphon of a bivalve mollusk (as a clam), the part of a garment that covers or is next to the neck, a relatively narrow part suggestive of a neck: as, a. the constricted end of a bottle, the slender proximal end of a fruit, cervix 2, the part of a stringed musical instrument extending from the body and supporting the fingerboard and strings, a narrow stretch of land, strait 1b, the part of a tooth between the crown and the root, a column of solidified magma of a volcanic pipe or laccolith, a narrow margin , region , part ,
II. verb
Date: 1842
transitive verb to kiss and caress amorously, to reduce in diameter, intransitive verb to engage in amorous kissing and caressing, to become constricted ; narrow