atrabilious
adjective
[ ˌatrəˈbɪlɪəs ]
• melancholy or irritable.
• "an atrabilious old man"
Origin:
mid 17th century (in the sense ‘affected by black bile’, one of the four supposed cardinal humours of the body, believed to cause melancholy): from Latin atra bilis ‘black bile’, translation of Greek melankholia ‘melancholy’, + -ious.
