D defs.my
Entry 1 sense Webster, 1913

Probably

/präb'-əb-lēˌ/ · Prob·a·bly · IPA /ˈpɹɑ.bə.bli/
01 adv. In a probable manner; in likelihood.
  1. 1.
    In a probable manner; in likelihood.
    “Distinguish between what may possibly and what will probably be done.” L'Estrange.