Where does “postconfluence” come from?

postconfluence (English) comes from English post, from Middle French poste, from Italian posta, from Latin probāre, from Latin probō, from Latin Probus, from Proto-Indo-European pro-bhwo-, from Proto-Indo-European pro- — passed , crossed.

Ancestry of “postconfluence”, step by step

postconfluence 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
4Latinprobāre
5Latinprobōto approve, permit, commend
6LatinProbusgood, serviceable, excellent, superior, able
7Proto-Indo-Europeanpro-bhwo-being in front, prominent
8Proto-Indo-Europeanpro-toward, forward
9Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
10Proto-Indo-Europeanper-before, in front; first; to go through
11Proto-Indo-Europeanpr̥tóspassed , crossed

via English confluence

StepLanguageWordMeaning
1EnglishconfluenceThe place where two rivers, streams, or other...
2Latinconfluentiaa flowing together, conflux; a confluence
3Latincōnfluēnsa confluence
4LatinconfluoI flow or run together, meet; I flock or crowd...
5Latinfluōto flow, stream, pour
6Proto-Indo-Europeanbʰléh₁-to bleat
7Proto-Indo-Europeanbʰel-to sound; to speak, roar, bark; shiny, white; to...
8Proto-Indo-Europeanbʰōl-
Every word from Proto-Indo-European pr̥tós