Akademik

moan
n. & v.
—n.
1 a long murmur expressing physical or mental suffering.
2 a low plaintive sound of wind etc.
3 a complaint; a grievance.
—v.
1 intr. make a moan or moans.
2 intr. colloq. complain or grumble.
3 tr. a utter with moans. b lament.
Derivatives:
moaner n. moanful adj. moaningly adv.
Etymology: ME f. OE man (unrecorded) f. Gmc

Useful english dictionary. 2012.