labialism

[ ley-bee-uh-liz-uh m ]
/ ˈleɪ bi əˌlɪz əm /

noun

a tendency, sometimes habitual, to make sounds labial, as in pronouncing the l in love as a w-like sound.

Origin of labialism

First recorded in 1880–85; labial + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019