1668 Bp. J. Wilkins ii. xi. §iv. 281 Parts of vessels..fixed and upright; or the upper parts of these, round and prominent: Mast-Top, Boul.
1797 J. Arnold i. v. 25 Hush winds and billows upon the mast top, When the wind blows the sailor must stop.
1871 R. Ellis tr. Catullus Frag. v Where yon lucent mast-top [L. carchesia], a cup of silver, arises.