Definition - An obsolescent phonetics term for the mispronouncing of [l] or the substituting of [l] for [r].

1. To do lallation is "to lall."

Example -
Loy Logers and Lin Tin Tin

Etymology -
The word derives from the Latin lallare, to sing la-la or lullaby. When it first entered English, it denoted a "childish utterance."

Oxford English Dictionary -
The term's first citation is this sense is from 1864:
"The Popos and Dahomans have the same lallation as the Chinese, who call rum ‘lum’."
(R. F. Burton Dahome I. 158)

Please comment