atrabiliar


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at·ra·bil·ious

 (ăt′rə-bĭl′yəs) also at·ra·bil·i·ar (-bĭl′ē-ər)
adj.
1. Inclined to melancholy.
2. Having a peevish disposition; surly.

[From Latin ātra bīlis, black bile (translation of Greek melankhōliā) : ātra, black; see āter- in Indo-European roots + bīlis, bile.]

at′ra·bil′ious·ness n.