fetch (v.) Look up fetch at Dictionary.com
Old English feccan, apparently a variant of fetian, fatian "to fetch, bring near, bring back, obtain; induce; to marry," probably from Proto-Germanic *fetan (cognates: Old Frisian fatia "to grasp, seize, contain," Old Norse feta "to find one's way," Middle Dutch vatten, Old High German sih faggon "to mount, climb," German fassen "to grasp, contain"), from PIE verbal root *ped- "to walk," from root *ped- (1) "foot" (see foot (n.)). Variant form fet, a derivation of the older Old English version of the word, survived as a competitor until 17c. Related: Fetched; fetching.
fetch (n.) Look up fetch at Dictionary.com
"apparition, specter, a double," 1787, of unknown origin (see OED for discussion).