Merriam-Webster's Collegiate® Dictionary, 11th Edition
HITCH
I. verb
Etymology: Middle English hytchen
Date: 14th century
transitive verb to move by jerks or with a tug,
2. to catch or fasten by or as if by a hook or knot , b. to connect (a vehicle or implement) with a source of motive power , to attach (a source of motive power) to a vehicle or instrument , to join in marriage , hitchhike , intransitive verb to move with halts and jerks ; hobble ,
2. to become entangled, made fast, or linked, to become joined in marriage, hitchhike , hitcher noun
II. noun
Date: 1664
limp , a sudden movement or pull ; jerk ,
3. a sudden halt ; stoppage , a usually unforeseen difficulty or obstacle , the act or fact of catching hold, a connection between a vehicle or implement and a detachable source of power (as a tractor or horse), a delimited period especially of military service, any of various knots used to form a temporary noose in a line or to secure a line temporarily to an object, lift 5b