The Collaborative International Dictionary
Improperation
Improperation \Im*prop`er*a"tion\, n. [L. improperare, improperatum, to taunt.] The act of upbraiding or taunting; a reproach; a taunt.
Improperatios and terms of scurrility.
--Sir T.
Browne
Wiktionary
improperation
n. (context obsolete English) A reproach; an instance of upbraiding or contumely.