Where does “slappity” come from?

slappity (English) comes from English slap, from Middle English slappen.

slappity (English): Nonce variation of the word slap, usually used to...

Definitions

  1. Nonce variation of the word slap, usually used to...

Ancestry of “slappity”, step by step

slappity traces back through two separate lines of ancestry.

via English slap

StepLanguageWordMeaning
1EnglishslapA blow, especially one given with the open hand,...
2Middle Englishslappen—

via English ity

StepLanguageWordMeaning
1Englishity—
2Ingrian-uUsed to form nouns from verbs
Every word from Middle English slappen →Every word from English slap →