"Lubha" is a word in TAGALOG, HILIGAYNON

lúbhà - Cheating, cunning, treason,
insidiousness, meanness; to be mean, to
cheat, betray, act insidiously, to worm—,
fish—, pump—, ferret—, out secrets or elicit
an admission, etc. and betray the confiding
victim. Indì mo siá paglubhaón. Don’t
cheat—, trick—, betray—, him. Ginlúbhà
níya siá. She (He) jilted him (her).
Ginbuhátan níya siá sing madámù nga
mga lúbhà. He often—played him false,—
was mean to him,—cheated him,—betrayed
his confidence. (cf. dáyà, límbong, búdhì,
luíb, kátkat).

lubha
Definition: (adj) /ma--/ serious; grave; very ill