ìmì noun /ì.mĩ̀/
Definitions
  1. the act of swallowing
Etymology
From ì- (“nominalizing prefix”) + mì (“to swallow”)
Component words
ì-nominalizing prefixto swallow
Source: Wiktionary · etymology 3, where this word is spelled “imi”. Reference: en-imi-yo-noun-2yKq7mCh