ibùsùn noun /ī.bù.sũ̀/
Definitions
  1. bed
Etymology
From ibi (“place”) + ì- (“nominalizing prefix”) + sùn (“to sleep”), literally “the place for sleeping”.
Component words
ibiplaceì-nominalizing prefixsùnto sleep
Source: Wiktionary, where this word is spelled “ibusun”. Reference: en-ibusun-yo-noun-xQUlMsIg