Etymology: Ticia (assumed to be an error for *tiica = tīca, or *ticca) appears once, in the Erfurt Gloss. a800, after which the word is known only in 15th cent. as teke, from 14th to 17th centuries as tȳke, and from 16th cent. as tycke, tick. Teke agrees with Middle Dutch, Middle Low German tēke, Dutch teek, also with the Low German forms teke, täke. Tȳke, tīke agree with suggested Old English *tīca, with Low German tieke, tiek, whence Dutch tiek, and modern East Frisian tike, tîk, applied to beetles generally (Dornkaat-Koolman). Thence also probably French tique (1464 in Godefroy). The later tycke, tick may be shortened < teke: compare rick, sick, wick. If = Old English *ticca with Old Germanic cc, it would correspond to German zecke (whence Italian zecca) < *tikkon masculine or *tikkôn feminine; if = *tĭca, to Middle High German zeche. The various forms imply West Germanic *tîka-, *tika-, *tikka-. Ulterior etymology uncertain: see Kluge and Franck; also Falk and Torp s.v. Tæge.

Etymology: Known from 15th cent., in the forms tikke , tēke , tȳke ; the second corresponding to Middle Low German and Middle Dutch têke (modern East Frisian têk , Doornkaat-Koolman), cognate with Old High German ziahha , ziecha , Middle High German, German zieche bed-tick, pillow-case; the third to Middle Dutch tîke , tijcke , Dutch tijk . These forms point to an earlier West Germanic *tēka , and later *tīka , both < Latin tēca , thēca , < Greek θήκη case, whence also French teie , taie , obsolete English tay n. The short vowel in tykke, tikke, ticke, tick, is probably as in rick, sick, wick.

Etymology: Not known a1440, the verb (tick v.¹) appearing a century later. Parallels to noun and verb appear in Dutch tik a pat, touch, tick, tikken to pat, tick, Low German tikk a touch, also a moment, instant, with ticken or tikken verb, Norwegian tikke to touch lightly, also Middle High German zic ‘a light touch or push’, and zicken verb. These may indicate a common Old Germanic source, or they may be of later onomatopoeic formation, the expression in ‘vocal gesture’ of the act or sound in question.

Etymology: apparently abbreviation of ticket n.¹ 7 in the phrase on the ticket . Chronology forbids derivation < tick v.¹ 3 or tick n.³ 3, which has sometimes been conjectured.

Etymology: < French tic in same senses: compare tic n. (which retains the French spelling).

Etymology: Echoic.

Etymology: < tick n.³: compare Dutch tikken to pat, tick, Norwegian tikke to touch lightly.

Etymology: < tick n.⁴

Etymology: < tick n.⁵