Where does “postimmunisation” come from?

postimmunisation (English) comes from English post, from Middle French poste, from Italian posta, from Italian posto, from Latin positus, from Latin pōnō, from Proto-Italic poznō, from Proto-Italic pozinō.

Ancestry of “postimmunisation”, step by step

postimmunisation traces back through two separate lines of ancestry.

via English post

StepLanguageWordMeaning
1EnglishpostA long dowel or plank protruding from the ground;...
2Middle Frenchposte—
3Italianpostamail, post; post office; stakes
4Italianpostoplace, spot
5Latinpositusplaced; ordained
6Latinpōnōto place; to put; to lay
7Proto-Italicpoznō—
8Proto-Italicpozinō—
9Proto-Italicsinō—

via English immunisation

StepLanguageWordMeaning
1EnglishimmunisationAlternative spelling of immunization; The process...
2Frenchimmunisationimmunization
Every word from Proto-Italic sinō →Every word from Proto-Italic pozinō →Every word from Proto-Italic poznō →