Dictionary entry

Skainsmate

Webster's Dictionary 1913

Skains″mate′ (?), n. [Perhaps originally, a companion in winding thread (see Skein), or a companion in arms, from skain a sword (see Skean).] A messmate; a companion.

Scurvy knave! I am none of his firt-gills; I am none of his skainsmates. Shak.