Where does “soyle” come from?

soyle (Middle English) comes from Anglo-Norman soyl, from Latin solium, from Proto-Indo-European sodyom, from Proto-Indo-European sḗd- — to sit.

Ancestry of “soyle”, step by step

StepLanguageWordMeaning
1Anglo-Normansoylbottom, ground, pavement
2Latinsoliumseat, chair; throne, chair of state, official...
3Proto-Indo-Europeansodyom—
4Proto-Indo-Europeansḗd-to sit
Every word from Proto-Indo-European sḗd- →Every word from Proto-Indo-European sodyom →Every word from Latin solium →