lo·qua·cious 
(lō-kwāshəs)
(lō-kwāshəs)adj.
Very talkative; garrulous.
[From Latin loquāx, loquāc-, from loquī, to speak; see tolkw- in the Appendix of Indo-European roots.]
lo·quacious·ly adv.
lo·quacious·ness, lo·quaci·ty (lō-kwăsĭ-tē) n.