as ‧ cet ‧ ic /əˈsetɪk/ BrE AmE adjective
[ Date: 1600-1700 ; Language: Greek ; Origin: asketikos , from asketes 'person who exercises, hermit' , from askein 'to work, exercise' ]
living without any physical pleasures or comforts, especially for religious reasons:
an ascetic life
—ascetic noun [countable]
—asceticism /-tɪsɪz ə m/ noun [uncountable]