dʰerǵʰ-mn̥-

“firmness, hardness, endurance”

Widely acceptedqualitypersistence

durable, endurance, obdurate, duress

Nominal of *dʰerǵʰ- giving Latin dūrus, English durable, endurance, obdurate, duress.

bʰerǵ-eyo-“to keep brightening, shining”deru-“tree, wood, to be firm”dʰeh₁-rm-“that which is heated, warm”dʰeh₁-ḱ-ul-“easy to make, manageable”dʰerǵʰ-eyo-“to keep holding firm, enduring”gʰeHd-“to unite, join, be fitting”gʷerh₃-tú-“heaviness, weight, dignity”gʷeyh₃-wó-“alive, living, vital”