spay /speɪ/ BrE AmE verb [transitive]
[ Date: 1400-1500 ; Language: Old French ; Origin: espeer 'to cut with a sword' , from espee 'sword' , from Latin spatha ; ⇨ ↑ spatula ]
to remove part of the sex organs of a female animal so that it is not able to have babies ⇨ neuter