ab initio - from the beginning⏎
contradictio in adjecto - contradiction in itself⏎
contra - against⏎
animus contrahendi - contractual intent⏎
a fortiori - from stronger⏎
ad coelum - to the sky⏎
(in) arguendo - for the sake of argument⏎
alter ego - another I⏎
a posteriori - from later⏎