awùsá noun /ā.wù.sá/
aghọ̀sá (alternative), awòha (alternative), ẹụ̀sá (alternative)
Definitions
  1. the plant Plukenetia conophora
  2. the nut of the Plukenetia conophora plant, known as the Nigerian walnut
Etymology
Proposed to be derived from Proto-Yoruba *V-ɣʊ̀sá, *a-ɣʊ̀sá, *ɛ-ɣʊ̀sá, probably of Proto-Edekiri origin. Maybe equivalent to a- (“nominalizing prefix”) + wù (“to uproot; to grow”) + sá (“to dry”), perhaps referring to the drying of the nuts. Also compare with the synonym àsálà, where "sá" is also seen.
Component words
a-nominalizing prefixto uproot; to growto dry
Source: Wiktionary, where this word is spelled “awusa”. Reference: en-awusa-yo-noun-iwqAybaP