bẹ́rẹ̀ noun /bɛ́.ɾɛ̀/
Definitions
  1. an elderly male relative; (in particular) a revered or adored male elder
Etymology
Possibly related to bẹ́ẹ́rẹ̀ (“firstborn son”)
Source: Wiktionary · etymology 5, where this word is spelled “bẹrẹ”. Reference: en-bẹrẹ-yo-noun-E0nsxjh5