D defs.my
Entry 2 senses Webster, 1913

Marginally

· Mar·gin·al·ly · IPA /ˈmɑɹd͡ʒɪnəli/
01 adv. In the margin of a book.
  1. 1.
    In the margin of a book.
  2. 2.
    In a marginal{3} manner; barely sufficiently; almost not; as, marginally useful. See: marginal