truckle

Short definition from Wiktionary

Noun

1. 1
   A small wheel; a caster or pulley.
2. 2
   A small wheel of cheese.
3. 3
   Ellipsis of truckle bed.

Verb

1. 1
   To roll or move upon truckles, or casters; to trundle.
2. 2
   To sleep in a truckle bed.
3. 3
   To act in a submissive manner; to fawn, submit to a superior.