Meaning

noun Greek mathematician and inventor who devised a way to determine the area of a triangle and who described various mechanical devices (first century)

noun grey or white wading bird with long neck and long legs and (usually) long bill

originFrom Middle English heron, heroun, heiron, from Anglo-Norman heiron, from Medieval Latin hairō, from Frankish and Proto-West Germanic *hraigrō, from Proto-Germanic *haigrô (compare Swedish häger and Danish hejre), dissimilation of *hraigrô (compare Old English hrāgra, Dutch reiger, German Reiher), from imitative Proto-Indo-European *(s)kreik-, *(s)kreig- (“to screech, creak”) (compare Welsh crëyr…

Etymology from Wiktionary, CC BY-SA 3.0