LXX Gen 4:25

Ἔγνω δὲ Ἀδὰμ Εὕαν τὴν γυναῖκα αὐτοῦ, καὶ συλλαβοῦσα ἔτεκεν υἱόν. καὶ ἐπωνόμασεν τὸ ὄνομα αὐτοῦ Σὴθ λέγουσα Ἐξανέστησεν γάρ μοι ὁ θεὸς σπέρμα ἕτερον ἀντὶ Ἅβελ, ὃν ἀπέκτεινεν Κάιν.

And Adam again had relations with his wife, and she gave birth to a son and named him Seth, saying, “God has granted me another seed in place of Abel, since Cain killed him.”