h₁ergh-

“to shake, quiver, move jerkily”

Debatedmovementvibration

earthquake, quake

Root related to shaking/quivering motion, reflected in seismic terminology.

bʰeh₂-d-“to go, step, walk”bʰer-eyo-“to carry repeatedly, bear habitually”bʰer-tó-“carried, borne”bʰormo-“to buzz, murmur, drone”dhregh-“to pull, drag, carry”dreHb-“to step heavily, trample”dʰrebʰ-“to drive, push, run”dʰrebʰ-eyo-“to keep running, drive”