English
proficuously
From proficuous + -ly.
Formed from proficuous + -ly
Latin proficuus ‘beneficial’
English proficuous
Today it means
adv In a proficuous manner.
Sources
Sources: Wiktionary, “proficuously”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / proficuously