h₂eḱ-men-
“stone, sharp stone”Widely acceptednatureearth
stone, rock
Root for stone, yielding Greek akmon (anvil), Lithuanian akmuo (stone), Sanskrit asman-.
(s)teh₂n-“to thunder”Hreg-“to wet, to rain”angʷʰi-“eel, snake, water-serpent”bʰerǵ-s-“to protect by enclosing”bʰew-sis-“nature, growth, being”bʰew-tú-“growth, nature, coming-to-be”bʰleh₁-“to blow, to puff”bʰudʰ-men-“bottom, foundation, ground”