> as lemmas

c1860 H. Stuart Novices or Young Seaman's Catech. (rev. ed.) 45 The mast head men put on a sail-tackle whip.

1908 Man. Seamanship (Admiralty) I. i. 17 Masthead man, whose duties are to keep a look-out... He will keep his watch either at the masthead, upper or lower top, as directed.