Meaning

noun animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes; especially the thin-shelled reproductive body laid by e.g. female birds

noun oval reproductive body of a fowl (especially a hen) used as food

noun one of the two male reproductive glands that produce spermatozoa and secrete androgens

originThe noun is derived from Middle English eg, egg, egge (“egg of a domestic or wild fowl; egg of a snake”) [and other forms] (originally Northern England and Northeast Midlands), from Old Norse egg (“egg”), from Proto-Germanic *ajją (“egg”) (by Holtzmann’s law), from Proto-Indo-European *h₂ōwyóm (“egg”), probably from *h₂éwis (“bird”), from *h₂ew- (“to consume”). Doublet of huevo, oeuf, and ovum.…

Etymology from Wiktionary, CC BY-SA 3.0