Definition of obeisantly in English:
obeisantly
adverb ə(ʊ)ˈbeɪsntliə(ʊ)ˈbiːsntli
archaic, literary 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.