IPA: /oʊˈbiːsənt/
KK: /oʊˈbiːsənt/
Showing respect and willingness to obey; being polite and submissive in behavior.
The obeisant servant bowed deeply before the king.
Obeisant is formed from "obeir" (from Old French, meaning to obey) and the suffix "-ant" (meaning characterized by or performing). The word "obeisant" describes someone who is characterized by obedience or submission.
Think of someone who is 'performing' ('-ant') the act of 'obeying' ('obeir') — that's why obeisant means being obedient or submissive.