Entry 1 sense Webster, 1913 Ingulf · In·gulf · IPA 01 v. t. To swallow up or overwhelm in, or as in, a gulf; to cast into a gulf. See Engulf. imp. & p. p. Ingulfed; p. pr. & vb. n. Ingulfing 1. To swallow up or overwhelm in, or as in, a gulf; to cast into a gulf. See Engulf. See: Engulf “A river large . . . Passed underneath ingulfed.” — Milton.