Is there a word for words which sound similar? My year 12 class were pondering this question early yesterday morning, stimulated by a line of Lucretius:
ergo dissolvi quoque convenit omnem animai
naturam, ceu fumus, in altas aeris auras...
And so it folows that the whole nature of the soul is dissolved,
just like smoke, into the lofty breezes of the air...
[Lucretius, DRN III.455f]
Homophones (from the Greek homos meaning 'same' and phone meaning 'sound') are words that have the same sound, but different meanings (eg their/there/they're), so I proposed that words that have similiar sounds should be called homoiophones, from the Greek homoios, meaning 'like' or 'similar'.
I typed 'homoiophone' into google to see if such a word already existed, and only got one hit, but when I followed the link I couldn't actually discover where it was used on that page. I also got a hit for 'homoiphone'- but only as a misspelling of homophone.