The Collaborative International Dictionary
Steersmate
Steersmate \Steers"mate\ (st[=e]rz"m[=a]t`), n. [Steer a rudder
+ mate a companion.]
One who steers; steersman. [Obs.]
--Milton.
Wiktionary
steersmate
n. (context obsolete English) One who steers; a steersman.