A lot vs. Alot: 9 Grammatical Pitfalls
"pertaining to bile," 1731, from French biliaire, from bile (see bile). Meaning "bilious in mood or temperament" is recorded from 1837.
biliary bil·i·ar·y (bĭl'ē-ěr'ē)adj.
Of or relating to bile, the bile ducts, or the gallbladder.