s. refining metals,
cotanaikotukka , to pass examination, as candidates for office; to be examined; to pass examination, as baggage or lading.
cotanaikkaran , a searcher, examiner, tempter; 2. a censor.
cotanai ceyya , -panna , -parkka , to examine, to search; 2. to try the character of a person,cotikka .
taycotanai , self-examination.
teva cotanai , divine trial.
nakarcotanai , examination of a city.
s. steady and persevering practice,
ஒரே சாதனையாய்ச் சாதிக்கிறான் , he obstinately persists in saying so.
சாதனைக்கள்ளன் , an obstinate character.
சாதனைக்காரன் , one that practises any art; 2. same asசாதனைக்கள்ளன் .
சாதனைக்காரன் , --சாதனை செய்ய , --பண்ண , to practise or exercise a dexterous art; 2. to affirm or deny obstinately,சாதிக்க .
கற்பசாதனை , strengthening the body by the use of drugs.