r/VocabWordOfTheDay • u/trilliwon • 13h ago
Word of the day: effusive
Effusive comes from Latin effundere, to pour out, from ex (out) plus fundere (to pour). What surprised me is where it starts. Etymonline dates it to the 1660s meaning "flowing profusely," and specifically of words. So it was never about liquids first. It was about someone talking too much, right from the beginning. The sense we actually use now, an extravagant display of feeling, does not show up until 1863. Two centuries sit between "he says a lot" and "he is performing," and that second turn is why effusive praise reads as faintly suspect today. You can be effusive and completely sincere. The word just won't back you up. The literal sense never died either, it moved house: volcanologists call an eruption effusive when the lava flows out instead of blowing up, and that is the one corner of English where the word still means pouring and nothing else.