Akademik

yammer

n. & v. colloq. or dial.
—n.
1 a lament, wail, or grumble.
2 voluble talk.
—v.intr.
1 utter a yammer.
2 talk volubly.
Derivatives:
yammerer n.
Etymology: OE geomrian f. geomor sorrowful

Useful english dictionary. 2012.