ìṣúpó noun /ì.ʃú.k͡pó/
Definitions
  1. levirate marriage, widow inheritance
Etymology
From ì- (“nominalizing prefix”) + ṣú (“to inherit (a widow)”) + opó (“widow”), literally “The act of inheriting a widow of one's male relative as a wife”.
Component words
ì-nominalizing prefixṣúto inherit (a widow)opówidow
Source: Wiktionary, where this word is spelled “iṣupo”. Reference: en-iṣupo-yo-noun-WH6iWvF~