ìpèníjà noun /ì.k͡pè.nĩ́.d͡ʒà/
Definitions
  1. challenge, struggle
Etymology
From ì- (“nominalizing prefix”) + pè níjà (“to call into question, to challenge”).
Component words
ì-nominalizing prefixpè níjàto call into question, to challenge
Source: Wiktionary, where this word is spelled “ipenija”. Reference: en-ipenija-yo-noun-JHr06vPR