nebʰ-₂

“damp cloud, fog, mist”

Widely acceptedweathersky

nebula, nimbus

Root of Latin nebula "mist, cloud", Greek nephos "cloud", yielding English nebula, nebulous.‌‌‌‍‍‍‍‌‍‍‌‍‌‌‍‌‍‌‌‌‍‍‌‍‍‍‌‌‍‌‌‍

(H)meyǵʰ-“to urinate, to mist”(s)teh₂n-“to thunder”(s)tenh₂-“to crash, to thunder”bʰleh₁-s-“to blow, to blast”bʰleḱ-“to flash, lightning flash”dʰewh₂-“to flow, to run in drops”dʰweyh₂-mn̥“smoke, vapor rising from fire”gel-“cold, to freeze”