a. Having no brother.
1460. Pol. Rel. & L. Poems (1866), 207. Broþerlees, spouselees, ful wrecchid y-wis.
a. 1678. Marvell, Nymph Compl. Death Fawn. The brotherless Heliades.
1821. Byron, Cain, III. i. 464. I shrink from the deed which leaves thee brotherless.
1865. Lady T. Lewis, Miss Berrys Jrnls. & Corr., Introd. p. xvi. She was brotherless and unmarried.