ìbù noun /ì.bù/
ùbù (alternative)
Definitions
  1. the act of chipping of or from some substance
  2. crack, split
Etymology
From ì- (“nominalizing prefix”) + bù (“to scoop, to chip”)
Component words
ì-nominalizing prefixto scoop, to chip
Source: Wiktionary · etymology 5, where this word is spelled “ibu”. Reference: en-ibu-yo-noun-XKOKtufD