The story
- Proto-Indo-European*per-
- Ancient Greekπερῐ́ (perĭ́)
- Englishperi-
- Proto-Indo-European*ḱe?
- Proto-Indo-European*ḱóm
- Proto-Italic*kom
- Proto-Italic*kom-
- Latincon-
- Proto-Indo-European*kap-
- Proto-Indo-European*kapyéti
- Proto-Italic*kapjō
- Latincapiō
- Ancient Greekσῠλλᾰμβᾰ́νω (sŭllămbắnō)
- Latinconcipiō
- Latinconceptiō
- Old Frenchconception
- Middle Englishconcepcioun
- Englishconception
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishconceptional
- Englishpericonceptional
- Proto-Indo-European*leyg-
- Proto-Germanic*līką
- English todaypericonceptionally
From periconceptional + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.