8 letters · 12 points in Scrabble
adjective of an air current or wind; rising especially up a slope
originLearned borrowing from Ancient Greek ᾰ̓νᾰβᾰτός (ănăbătós, “moving upward”), from ᾰ̓νᾰ- (ănă-, “up”) + βαίνω (baínō, “to go”).
Etymology from Wiktionary, CC BY-SA 3.0