Sàmù name /sà.mũ̀/
Definitions
  1. A senior traditional chieftaincy title in Ọ̀yọ́, a member of the Ọ̀yọ́mèsì. Traditionally, upon the death of the Alaafin, the bearer of this title must commit ritual suicide and is then buried alongside the monarch
Source: Wiktionary, where this word is spelled “Samu”. Reference: en-Samu-yo-name-aPIqbAB-