Where does “preeruptive” come from?

preeruptive (English) comes from English pre, from Latin prae, from Proto-Italic prai, from Proto-Indo-European preh₂-, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

preeruptive (English): Prior to the formation of eruptions

Definitions

  1. Prior to the formation of eruptions

Ancestry of “preeruptive”, step by step

preeruptive traces back through two separate lines of ancestry.

via English pre

StepLanguageWordMeaning
1EnglishpreBefore; Precum, Cowper's fluid, pre-ejaculate; To...
2Latinpraebefore; in front; in front of
3Proto-Italicpraibefore; in front of
4Proto-Indo-Europeanpreh₂-before, in front
5Proto-Indo-Europeanper-before, in front; first; to go through
6Proto-Indo-Europeanpr̥tóspassed , crossed

via English eruptive

StepLanguageWordMeaning
1EnglisheruptiveThat erupts or bursts forth; Accompanied by...
2Frenchéruptiferuptive
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Proto-Indo-European preh₂-