ζείδωρος
From LSJ
γραμματική ἐστιν ἐμπειρία τῶν παρὰ ποιηταῖς τε καὶ συγγραφεῦσιν ὡς ἐπὶ τὸ πολὺ λεγομένων → grammar is a practical knowledge of the usage of poets and writers of prose
English (LSJ)
ον,
A zea-giving (Plin.HN18.82, EM410.6), as epith. of the earth, ζείδωρος ἄρουρα Il.2.548, Od.3.3, Hes.Op.173; ζ. ἀρδμός Nonn.D.26.185: c. gen., ζ. ὀπώρης ἀχράς AP9.4 (Cyllen.): also in late Prose, Hld.9.22 (ζε (ϝ) έ-δωρος, cf. ζέα). II some authors derived it from ζάω,= βιόδωρος (so expld. by Hsch.), life-giving, Ἀφροδίτη Emp.151; Ἠέλιος Nonn.D.12.23, cf. 22.276. ζείζιν, mamma, Gloss.