vicinityyoudaoicibaDictYouDict
vicinity: [16] Latin vīcus meant ‘group of houses, village’ (it is related to the -wich or -wick of English place-names, which originally meant ‘hamlet, town’). From it was derived vīcīnus ‘neighbouring’, which in turn produced vīcīnitās ‘neighbourhood’, source of English vicinity.
vicinity (n.)youdaoicibaDictYouDict
1550s, "nearness in place," from Middle French vicinité and directly from Latin vicinitas "of or pertaining to neighbors or a neighborhood," as a noun, "neighborhood, nearness, proximity," from vicinus (adj.) "of the neighborhood, near, neighboring," as a noun "the neighborhood, a neighbor," from vicus "group of houses, village," related to the -wick, -wich in English place names, from PIE *weik- (1) "clan, social unit above the household" (see villa). Meaning "neighborhood, surrounding district" in English is attested by 1796.