Where does “suspirandus” come from?

suspirandus (Latin) comes from Latin suspīrō, from Latin sub-, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

Definitions

Ancestry of “suspirandus”, step by step

StepLanguageWordMeaning
1Latinsuspīrōto sigh
2Latinsub-under, sub
3Proto-Indo-Europeanupóunder, below
4Proto-Indo-Europeanh₃ewp-—
Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from Latin sub- →