Where does “exsibilandus” come from?

exsibilandus (Latin) comes from Latin exsibilo, from Latin sībilō, from Latin -ō, from Proto-Indo-European -ō — Derives nouns from roots.

Definitions

Ancestry of “exsibilandus”, step by step

StepLanguageWordMeaning
1LatinexsibiloI hiss out or forth
2Latinsībilōto hiss
3Latin-ōsuffixed to nouns or adjectives. Originally a-stem nouns. Later extended to nouns with other stems. Forms regular first-conjugation verbs
4Proto-Indo-European-ōDerives nouns from roots
Every word from Proto-Indo-European -ō →Every word from Latin -ō →Every word from Latin sībilō →