Persuasively means in a way that brings others round to your view. Argue persuasively.
It judges the effect rather than the truth, so something wrong can be argued persuasively. Anybody who speaks persuasively is worth listening to and worth checking.
1adverbpersuasivelyIn a way that brings others round to your view.
“He put the case persuasively and lost the vote anyway.”
persuasively is a manner.
Proto-Indo-European
*sweh₂d-
Medieval Latin
persuāsīvus
Middle French
persuasif
English
persuasive
English, today
persuasively
From persuasive + -ly. persuasive comes from Middle French persuasif, from Medieval Latin persuāsīvus, from Latin - past participle stem of persuadeo + -īvus.
Etymology from Wiktionary, CC BY-SA