The story
- Proto-Indo-European*h₂r-tú-s
- Proto-Italic*artus
- Latinartus
- Ancient Greekἄρθρον (árthron)
- Latinarticulus
- Latinarticulō
- Medieval Latinarticulātiō
- Old Frencharticulacion
- Middle Englisharticulacioun
- English todayarticulation
From Middle English articulacioun, from Old French articulacion, from Medieval Latin articulatio. Equivalent to articulate + -ion.
Etymology from Wiktionary, CC BY-SA 4.0.