wanion /ˈweɪni.ən/ noun3 •(no longer used) Vengeance (in the phrases in a wanion, with a wanion, “with a vengeance”).And yet notwithstanding we must haue these goodly pageants played vpon the sabaoth day (in a wanion) because there are no mo daies in the week. — 1583 •(no longer used) Curse.S’foote what are these that pynch me? Goblins? A wanion on the Elues for me […] — 1617 •(no longer used) The wane of the moon. formswanions