innate
‘existing from birth’
Lexical development traced from the Tamil root:
E. innat < La.Lat. innatus ‘inborn, native, natural’ < innasci ‘to be born in, originate in’ < in- ‘in’ + nasci ‘to be born’ < uhn < en < Tamil il-iṉ
Other meaning: Botany: said of a part or organ borne on the apex of another.