TRUCKLE

fawn, toady, truckle, bootlick, kowtow, kotow, suck up

(verb) try to gain favor by cringing or flattering; “He is always kowtowing to his boss”

truckle

(verb) yield to out of weakness

Source: WordNet® 3.1

Etymology 1

Noun

truckle (plural truckles)

A small wheel; a caster or pulley.

A small wheel of cheese.

A truckle bed.

Verb

truckle (third-person singular simple present truckles, present participle truckling, simple past and past participle truckled)

To roll or move upon truckles, or casters; to trundle.

(intransitive) To sleep in a truckle bed.

Etymology 2

Verb

truckle (third-person singular simple present truckles, present participle truckling, simple past and past participle truckled)

(intransitive) To act in a submissive manner; to fawn, submit to a superior.

Source: Wiktionary

Truc"kle, n. Etym: [Dim. of truck a wheel; or from the kindred L. trochlea a block, sheaf containing one or more pulleys. See Truck a wheel.]

Definition: A small wheel or caster. Hudibras.

Truc"kle, v. i. Etym: [From truckle in truckle-bed, in allusion to the fact that the truckle-bed on which the pupil slept was rolled under the large bed of the master.]

Definition: To yield or bend obsequiously to the will of another; to submit; to creep. "Small, trucking states." Burke. Religion itself is forced to truckle to worldly poliey. Norris.

Truc"kle, v. t. [imp. & p. p. Truckled; p. pr. & vb. n. Truckling.]

Definition: To roll or move upon truckles, or casters; to trundle.

Source: Webster’s Unabridged Dictionary 1913 Edition