Meaning

noun a changeable or inconstant person

noun a faint constellation in the polar region of the southern hemisphere near Apus and Mensa

noun lizard of Africa and Madagascar able to change skin color and having a projectile tongue

originFrom Middle English camelion, from Old French cameleon, from Latin chamaeleon, from Ancient Greek χαμαιλέων (khamailéōn), from χαμαί (khamaí, “on the earth, on the ground”) + λέων (léōn, “lion”); ultimately a calque from Akkadian 𒌨𒈤𒊭𒆠 (nēšu ša qaqqari, “chameleon, reptile”, literally “lion of the ground", "predator that crawls upon the ground”). The spelling was re-Latinized in the early 18th…

Etymology from Wiktionary, CC BY-SA 3.0