Guide
late Middle English: from Old French guide (noun), guider (verb), of Germanic origin; related to wit2.
wiktionary
c. 1325–75. From Middle English guide, from the Old French guide, from Old Occitan guida, from guidar, from Frankish *wītan(“to show the way, lead”), from Proto-Germanic *wītaną(“to see, know; go, depart”), from Proto-Indo-European *weyd-(“to see, know”). Cognate with Old English wītan(“to see, take heed to, watch after, guard, keep”). Related also to English wit.
From Middle English guiden, from Old French guider, from Old Occitan guidar, from Frankish *wītan(“to show the way, lead”), from Proto-Germanic *wītaną(“to see, know; go, depart”), from Proto-Indo-European *weyd-(“to see, know”).
etymonline
guide (v.)
late 14c., "to lead, direct, conduct," from Old French guider "to guide, lead, conduct" (14c.), earlier guier, from Frankish *witan "show the way" or a similar Germanic source, from Proto-Germanic *witanan "to look after, guard, ascribe to, reproach" (source also of German weisen "to show, point out," Old English witan "to reproach," wite "fine, penalty"), from PIE root *weid- "to see." The form of the French word influenced by Old Provençal guidar (n.) "guide, leader," or Italian guidare, both from the same source. Related: Guided; guiding. Guided missile, one capable of altering course in flight, is from 1945.
guide (n.)
mid-14c., "one who shows the way," from Old French guide, 14c., verbal noun from guider (see guide (v.)). In book titles from 1610s; meaning "book of information on local sites" is from 1759. In 18c. France, a "for Dummies" or "Idiot's Guide to" book would have been a guid' âne, literally "guide-ass." Guide-dog for the blind is from 1932.
