I think this is how it happened, though neither of us can remember for sure.
I walked by a colleague’s desk, in a reasonably good mood. Maybe I made a light joke.
C: My, you seem levitacious today.
R: Wow, that’s a great word you’ve coined!
More banter commending the word.
C (in e-mail): Which spelling doth thou prefereth? Levitacious or levitatious?
R (in e-mail): Think I like the C, avoiding 2 Ts. How about you?
C (in e-mail): I agree!
R (in e-mail): levitacious (adj)– being filled with joy, levity
C (in e-mail): Excellent!
So, are you feeling levitacious today? Tell me some of the word coinage you’ve done.