From the prolonged form of ethelo; a determination (properly, the thing), i.e. (actively) choice (specially, purpose, decree; abstractly, volition) or (passively) inclination -- desire, pleasure, will.
see GREEK ethelo
θέλημά (thelēma) − 40 Occurrences
θελήματά (thelēmata) − 2 Occurrences
θελήματι (thelēmati) − 6 Occurrences
θελήματος (thelēmatos) − 14 Occurrences