"Langub" is a word in HILIGAYNON, CEBUANO

lángub n cave.
v [B1256; a12] become, make into a cave.

lángub - Cave, cavity, hole, depression,
place surrounded by hills; hunting box,
hut, hovel, cabin. (cf. lungíb, gíab;
payágpáyag; datág, lóblob).

lángod – lántang
lángub, To cover, fold, etc. See lákub. (cf.
ilalangúb).

lángub - Weal, bruise, abrasion,
excoriation, (cf. yángub, hanóg, lanóg,
lábhag, labúd).