pound vs poundage

pound and poundage both are nouns.

Word	Noun	Adjective	Verb	Adverb
pound	Yes	No	Yes	No
poundage	Yes	No	No	No

pound (noun)	poundage (noun)
the act of pounding (delivering repeated heavy blows)	placing private property in the custody of an officer of the law
a public enclosure for stray or unlicensed dogs	weight expressed in pounds
a symbol for a unit of currency (especially for the pound sterling in Great Britain)	a fee charged for the recovery of impounded animals
a nontechnical unit of force equal to the mass of 1 pound with an acceleration of free fall equal to 32 feet/sec/sec	a charge based on weight measured in pounds
the basic unit of money in Great Britain and Northern Ireland; equal to 100 pence
the basic unit of money in Cyprus; equal to 100 cents
the basic unit of money in Egypt; equal to 100 piasters
formerly the basic unit of money in Ireland; equal to 100 pence
the basic unit of money in Lebanon; equal to 100 piasters
the basic unit of money in the Sudan; equal to 100 piasters
the basic unit of money in Syria; equal to 100 piasters
16 ounces avoirdupois
a unit of apothecary weight equal to 12 ounces troy

pound (verb)	poundage (verb)
break down and crush by beating, as with a pestle
hit hard with the hand, fist, or some heavy instrument
strike or drive against with a heavy impact
place or shut up in a pound
shut up or confine in any enclosure or within any bounds or limits
partition off into compartments
move rhythmically
move heavily or clumsily