plumps is a form of:

Plump



ENGLISH MEANING
noun
1.
A knot; a cluster; a group; a crowd; a flock; as, a plump of trees, fowls, or spears.
adjective
1.
Done or made plump, or suddenly and without reservation; blunt; unreserved; direct; downright.
verb
1.
To grow plump; to swell out; as, her cheeks have plumped.
2.
To drop or fall suddenly or heavily, all at once.
3.
To give a plumper.
4.
(TRANSITIVE) To make plump; to fill (out) or support; -- often with up.
5.
(TRANSITIVE) To cast or let drop all at once, suddenly and heavily; as, to plump a stone into water.
6.
(TRANSITIVE) To give (a vote), as a plumper.
adverb
1.
Directly; suddenly; perpendicularly.
2.
Well rounded or filled out; full; fleshy; fat; as, a plump baby; plump cheeks.