hitch (v.) Look up hitch at Dictionary.com
mid-15c., probably from Middle English icchen "to move as with a jerk, to stir" (c. 1200). It lacks cognates in other languages. The connection with icchen may be in notion of "hitching up" pants or boots with a jerking motion. Sense of "become fastened," especially by a hook, first recorded 1570s, originally nautical. Meaning "to marry" is from 1844 (to hitch horses together "get along well," especially of married couples, is from 1837, American English). Short for hitchhike (v.) by 1931. Related: Hitched; hitching. To (figuratively) hitch (one's) wagon to a star is by 1862.
hitch (n.) Look up hitch at Dictionary.com
1660s, "a limp or hobble;" 1670s, "an abrupt movement," from hitch (v.). Meaning "a means by which a rope is made fast" is from 1769, nautical. The sense of "obstruction" (usually unforeseen and temporary) is first recorded 1748; military sense of "enlistment" is from 1835.