Today's words

epenthesis \ih-PEN-thuh-sis\ - the insertion or development of a sound or letter in the body of a word

This is one of those words that I see and think, "Oh, yeah, I know that word," but rarely encounter a need for it and probably wouldn't actually recall the word if I needed it.

sclaff \SKLAF\ - to scrape the ground instead of hitting the ball cleanly on a golf stroke

I've done this many times without knowing the word for it.