Question 3: The meaning of the Greek word "Tribos" from which the word Tribology is formed is
Qore3:  qalin qori  ama qalin maaley "qalin" waxa laga soo amaahday af-carabi imikana waxa la gaadhay xilliga la iska dhaafi lahaa maadama oo aynu leenahay eray u qalma