Latin: vice versa
Pronounced vice-a versa, this literally means "the other way round" and is from Latin. The first word (vice) basically means to change. The second (versa) essentially means to turn.
e.g. John was able to produce a current through the coil of wire if he moved it over a magnet or vice versa.
a.m. & p.m., cf., e.g., et al., etc., i.e., N.B., P.S., Q.E.D., q.v., viz.
ad hoc, de facto, modus operandi, non sequitur, pro rata, quid pro quo, sic, vice versa.