Question.

[conuly]

Words that sound alike at the end (end, send, bend; can, ban, ran; book, nook, crook) are said to rhyme. Words that sound alike at the beginning (see, saw, summer; less, land, loop; hope, hop, horoscope) are said to alliterate. What about words that only sound different in the middle? Groups like book, bake, bark. Or cap, keep, cop. Or gout, got, gut. Don't they get a cool word too?

Comments

[cumaeansibyl.livejournal.com]

"Consonance" is the repetition of consonant sounds without requiring them to be at the beginning of the word (alliteration), which isn't quite the word you wanted but it's close. (The vowel equivalent is "assonance.")