the.com/loquacity
The art of using forty words where four would have suffered less.
means The tendency to talk a great deal, often more than anyone strictly required.
from From Latin loqui, to speak — the same root powering eloquent, colloquial, and the dreaded soliloquy.
Quiet cousinOpposite is taciturnity, the gift of saying nothing
Word familyShares roots with ventriloquist, the throat-talker
Subtle shadeImplies excess, not merely fluency or wit