adv. [f. prec. + -LY2.] In a cumbrous, troublesome or burdensome manner: see the adj.
1401. Pol. Poems (Rolls), II. 104. Multipliyng of so many freris, whiche encresen combrouseli.
1548. Udall, etc. Erasm. Par., Pref. 19. To be coumbreously entangled as it were.
1823. Dom. Mann. Romans, 111. The tire was not unfrequently of brass; they were cumbrously heavy.
1875. Whitney, Life Lang., x. 180. Rejecting both these titles as cumbrously long.