MAMMERING

Etymology 1

Verb

mammering

present participle of mammer

Etymology 2

Adjective

mammering (comparative more mammering, superlative most mammering)

Hesitating; hesitant; wavering.

Source: Wiktionary

MAMMER

Mam"mer, v. i. Etym: [Cf. G. memme coward, poltroon.]

Definition: To hesitate; to mutter doubtfully. [Obs.]

Source: Webster’s Unabridged Dictionary 1913 Edition