early 15c., "to shut up in a pen or pound," from assimilated form of in- "into, in" (from PIE root *en "in") + pound (n.). Originally of cattle seized by law. Related: Impounded; impounding.
The customs agents impounded the illegal shipment
impostor
imposture
impotable
impotence
impotent
impound
impoundment
impoverish
impoverishment
impracticable
impractical
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