Meaning

noun an animal that has strayed (especially a domestic animal)

verb move about aimlessly or without any destination, often in search of food or employment

verb wander from a direct course or at random

originFrom Middle English strayen, partly from Old French estraier, from Vulgar Latin via strata, and partly from Middle English strien, streyen, streyȝen (“to spread, scatter”), from Old English strēġan (“to strew”).

Etymology from Wiktionary, CC BY-SA 3.0