prattle

Etymology

From prate + -le (early modern English frequentative suffix). Compare Dutch pruttelen and Dutch preutelen (“to mutter”).

verb

1. (transitive, intransitive) To speak incessantly and in an inconsequential or childish manner; to babble.
   And as E. Rushmore Coglan prattled of this little planet I thought with glee of a great almost-cosmopolite who wrote for the whole world and dedicated himself to Bombay. 1906, O. Henry, A Cosmopolite in a Café
   I looked across at Anna, and I noticed that her eyes had grown strangely blank, without expression. I felt instinctively that the subject brought up by Victor was one she would not have chosen. Victor, insensitive to this, went prattling on. 1952, Daphne Du Maurier, “Monte Verità”, in The Apple Tree

noun

1. Silly, childish talk; babble.