Where does “ajouster” come from?

ajouster (Old French) comes from Latin adjuxtare, from Latin juxta, from Latin iuxta, from Proto-Italic jougestād, from Proto-Italic jougestos, from Proto-Italic jougos, from Proto-Indo-European yéwgos, from Proto-Indo-European yewg- — to join, to yoke, to tie together.

Ancestry of “ajouster”, step by step

ajouster traces back through two separate lines of ancestry.

via Latin adjuxtare

StepLanguageWordMeaning
1Latinadjuxtare
2LatinjuxtaAlternative form of iū̆xtā; near to, nigh
3Latiniuxtanearly; near, close to; just as
4Proto-Italicjougestād
5Proto-Italicjougestos
6Proto-Italicjougosyoked animals, team
7Proto-Indo-Europeanyéwgosteam, pair of yoked animals
8Proto-Indo-Europeanyewg-to join, to yoke, to tie together

via Vulgar Latin adiuxtare

StepLanguageWordMeaning
1Vulgar Latinadiuxtarepresent active infinitive of *adiuxtō
2Latiniuxtānearly, nigh
Every word from Proto-Indo-European yewg-Every word from Proto-Indo-European yéwgosEvery word from Proto-Italic jougos