— ataractic /at'euh rak"tik/ , ataraxic , adj. , n.
/at'euh rak"see euh/ , n.
a state of freedom from emotional disturbance and anxiety; tranquillity.
Also, ataraxy /at"euh rak'see/ .
[ 1595-1605; atarák ( tos ) unmoved ( a- A- 6 + tarak-, var. s. of tarássein to disturb + -tos verbid suffix) + -s ( is ) -SIS + -ia -IA ]