D defs.my
Entry 2 senses Webster, 1913

Constitutionally

/känˌ-stət-o͞osh'-ən-əl-ē/ · Con·sti·tu·tion·al·ly · IPA /kɑnstəˈtuʃənəli/
01 adv. In accordance with the constitution or natural disposition of the mind or body; naturally; as, he was constitutionally timid.
  1. 1.
    In accordance with the constitution or natural disposition of the mind or body; naturally; as, he was constitutionally timid.
    “The English were constitutionally humane.” Hallam.
  2. 2.
    In accordance with the constitution or fundamental law; legally; as, he was not constitutionally appointed.
    “Nothing would indue them to acknowledge that [such] an assembly . . . was constitutionally a Parliament.” Macaulay.