Meaning

noun any tiny hole admitting passage of a liquid (fluid or gas)

noun any small opening in the skin or outer surface of an animal

noun a minute epidermal pore in a leaf or stem through which gases and water vapor can pass

originFrom Middle English poren, pouren, puren (“to gaze intently, look closely”), from Old English *pūrian, from Proto-West Germanic *pūrōn, suggested by Old English spyrian (“to investigate, examine”). Akin to Saterland Frisian puurje (“to question, investigate; pry, prod”), West Frisian poarje (“to poke, prod”), Middle Dutch poren (“to pore, look”), Dutch porren (“to poke, prod, stir, encourage,…

Etymology from Wiktionary, CC BY-SA 3.0