voluble (adj) - having a steady flow of language; fluent, talkative, or turning out words easily [vol-yuh-buhl]
BREAKDOWN: VOL- (turn) + -BLE (able to)
volubility is talkativeness or eloquence
“Delivers in such apt and gracious words that aged ears play truant at his tales; And younger hearings are quite ravished; So sweet and voluble is his discourse.” —William Shakespeare