D defs.my
Entry 2 senses Webster, 1913

Gradually

/grăj'-o͞o-əl-ē/ · Grad·u·al·ly · IPA /ˈɡɹæd͡ʒuəli/
01 adv. In a gradual manner.
  1. 1.
    In a gradual manner.
  2. 2.
    In degree.[Obs.]
    “Human reason doth not only gradually, but specifically, differ from the fantastic reason of brutes.” — Grew.