obeisantly
/ə(ʊ)ˈbeɪsntli/ /ə(ʊ)ˈbiːsntli/Now literary and archaic
adverb
Obediently; in an obeisant or deferential manner; with an obeisance.
Origin
Late Middle English. From obeisant + -ly. Compare Anglo-Norman obeisantment and Middle French obeissaument.