Late 17th century; earliest use found in John Owen (1616–1683), theologian and Independent minister. From classical Latin prōfluentia fluency (of speech); compare -ency.
Definition of profluency in US English:
profluency
nounˈprəʊflʊənsi
rare
Fluency of speech or writing; eloquence.
Origin
Late 17th century; earliest use found in John Owen (1616–1683), theologian and Independent minister. From classical Latin prōfluentia fluency (of speech); compare -ency.