E-mail today from Gadi Niram:
I seem to recall you coining the term “risonym”. What I can’t remember was whether a risonym made a person laugh because of its meaning or because of the speaker’s perception of the sound as funny. Can you refresh my memory?
I had no recollection of such a coining (though Gadi eventually resurrected a single use by me on Usenet 20 years ago — see below), but I tried to respond to the idea of words that are funny because of their sound.