Where does “abessier” come from?

abessier (Old French) comes from Old French baissier, from Vulgar Latin bassio, from Latin Bassus, from Ancient Greek βάσις, from Proto-Hellenic gʷə́tis, from Proto-Indo-European gʷémtis, from Proto-Indo-European gʷem- — to step.

abessier (Old French): to prostrate oneself; to lower, reduce

Definitions

to prostrate oneself; to lower, reduce

Ancestry of “abessier”, step by step

Step	Language	Word	Meaning
1	Old French	baissier	to lower
2	Vulgar Latin	bassio	I lower
3	Latin	Bassus	thick, fat, stumpy, short, low, base
4	Ancient Greek	βάσις	step; rhythm; foot
5	Proto-Hellenic	gʷə́tis	step
6	Proto-Indo-European	gʷémtis	step, act of walking
7	Proto-Indo-European	gʷem-	to step

Every word from Proto-Indo-European gʷem- →Every word from Proto-Indo-European gʷémtis →Every word from Proto-Hellenic gʷə́tis →