RHOTACISM
Etymology
Noun
rhotacism (countable and uncountable, plural rhotacisms)
An exaggerated use of the sound of the letter R.
(countable, phonology) A linguistic phenomenon in which a consonant changes into an R, such as Latin flos becoming florem in the accusative case; rhotacization.
Inability to pronounce the letter R; derhotacization.
Anagrams
• Chromista, chromista
Source: Wiktionary
Rho"ta*cism, n. Etym: [Gr. "rwtaki`zein to use the letter r (r)
overmuch: cf. F. rhotacisme.]
Definition: An oversounding, or a misuse, of the letter r; specifically
(Phylol.), the tendency, exhibited in the Indo-European languages, to
change s to r, as wese to were.
Source: Webster’s Unabridged Dictionary 1913 Edition