"Gab-I" is a word in HILIGAYNON

gáb-i - (H) Night, nightfall; to get—,
grow—, dark, become night. Maáyong gábi. Good evening. Good night. Dalî kamó sa
pagpaúlì, agúd índì kamó magabihán. Go
home quickly, lest—you should be
benighted,—you should be overtaken by
night,—night (darkness) should overtake
you. Naggáb-i na kag walâ pa siá
magabút. It is quite dark, and he has not
arrived yet. Nagab-ihán kamí dídto tungúd
sang ulán. We spent the night there on
account of the rain. (cf. kagab-íhon).