louche LOOSH, adjective:
Of questionable taste or morality; disreputable or indecent; dubious; shady.
Louche is from French louche, “shady, suspicious,” from Old French losche, “squint-eyed,” from Latin luscus, “one-eyed.”
casus belli KAY-suhs BEL-y, BEL-ee noun, plural casus belli
An action or event that causes or is used to justify starting a war.
From New Latin casus belli, from Latin casus, occasion, belli, genitive of bellum, war.