D defs.my
Entry 2 senses Webster, 1913

Potentially

/pət-ĕn'-shəl-ē/ · Po·ten·tial·ly · IPA /pəˈtɛnʃ(ə)li/
01 adv. With power; potently.
  1. 1.
    With power; potently.[Obs.]
  2. 2.
    In a potential manner; possibly, not positively.
    “The duration of human souls is only potentially infinite.” Bentley.