Hreg-
“to wet, to rain”Debatedwaterliquidnature
rain
PIE root meaning to wet or to rain. Source of words relating to moisture and precipitation.
(s)teh₂n-“to thunder”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”bʰlewH-“to overflow, to well up”bʰudʰ-men-“bottom, foundation, ground”