phonaesthesia
Any correspondence between the sound of a word and its meaning; examples include onomatopoeia and the use of phonesthemes.
uncountable
For this latter term, phonaesthesia is doubtless at work, since kring is also ‘the sound of a small bell’.
Where it comes from
Apparently coined by British linguist John Rupert Firth. From phon- + -aesthesia.
Adapted from the Wiktionary entry phonaesthesia (CC BY-SA 4.0).