Quiz: Remember the definition of mal de mer?
mid-13c., verray "true, real, genuine," later "actual, sheer" (late 14c.), from Anglo-French verrai, Old French verai "true," from Vulgar Latin *veracus, from Latin verax (genitive veracis) "truthful," from verus "true," from PIE *weros- (cf. Old English wær "a compact," Old Dutch, Old High German war, Dutch waar, German wahr "true;" Welsh gwyr, Old Irish fir "true;" Old Church Slavonic vera "faith"). Meaning "greatly, extremely" is first recorded mid-15c. Used as a pure intensive since Middle English.