h₁ers-

“to be in motion, to flow”

Widely acceptedmotion

err, error, race, erase

Root of Latin errāre "to wander", yielding English err, error, errant, aberrant; also race, erase.

(s)tew-“to push, to strike”bʰer-“to carry, to bear”bʰleh₁-“to blow, to puff”bʰredʰ-“to wade through, to cross water on foot”bʰreg-“to break, to shatter”dewk-“to pull, to lead by pulling”dʰenh₂-“to flow, to run (liquid)”dʰreǵ-₂“to pull, to drag along the ground”