In Gbaya, the notion of beauty (here used as charm that is worthless) in Proverbs 31:30 is emphasized with mgbɔɗɔmgbɔŋ, an ideophone used to designate someone who has a good constitution, who is in good health.
Ideophones are a class of sound symbolic words expressing human sensation that are used as literary devices in many African languages. (Source: Philip Noss)