verb (used with object), e·jac·u·lat·ed, e·jac·u·lat·ing.
verb (used without object), e·jac·u·lat·ed, e·jac·u·lat·ing.
Origin of ejaculate
Word Origin for ejaculate
1570s, "emit semen," from Latin eiaculatus, past participle of eiaculari "to throw out, shoot out," from ex- "out" (see ex-) + iaculari "to throw, hurl, cast, dart," from iaculum "javelin, dart," from iacere "to throw" (see jet (v.)). Only other surviving sense is "exclaim suddenly" (1660s). Related: Ejaculated; ejaculating.