Question

In Albanian folklore, this domain’s “beauty” names a goddess who makes unreasonable demands and has a kulshedra guardian. The chant “erce erce erce” (“AIR-kay AIR-kay AIR-kay”) addresses this domain in the Anglo-Saxon metrical charm Æcerbot (“ACK-er-boat”). This domain is personified by the Hittite “genius” Dagan-zipaš, the Lithuanian goddess Žemyna, and the Thracian goddess (10[1])from (10[1])whom Semele likely originates. The obscure nymph Plataea is cognate (10[1])with this domain’s Vedic goddess, Prithvi. (10[6])Moreover, (10[1]-5[1])both of those names reflect the reconstructed (10[1])epithet for this domain’s Proto-Indo-European (10[1])mother goddess *Dʰéǵʰōm (“DEG-yoam”), who is wedded to *Dyḗus ph₂tḗr (10[2])(“DAY-oos puh-TAIR”). In the Bibliotheca, (-5[1])Athena discards the semen (10[1])of Hephaestus into this realm, (10[3])whence it begets a snakeman (10[1])king of Athens. (10[1])For 10 points, (-5[1])identify this origin of the autochthonous (“uh-TOCK-thuh-nuss”) kings. (10[1])■END■ (10[2]0[1])

ANSWER: earth [or ground, land, soil, or equivalents; accept field or farm; reject “rock” or “stone”] (The epithet is *pl̥th₂éwih₂ (“pult-HEH-wee”), or “broad one.”)
<Mythology>
= Average correct buzz position