sapience (n.)

"wise, sage, discerning," late 15c. (early 15c. as a surname), from Old French sapient and directly from Latin sapientem (nominative sapiens) "sensible; shrewd, knowing, discrete;" also "well-acquainted with the true value of things" (like Greek sophos), a specialized use of the present participle of sapere, of things, "to taste, have taste;" of persons, "to have discernment, be wise."

This is reconstructed to be from PIE root *sep- (1) "to taste, perceive;" source also of Old Saxon ansebban "to perceive, remark," Old High German antseffen, Old English sefa "mind, understanding, insight," Old Norse sefi "thought"). "[N]ow generally used ironically" [Century Dictionary]. Related: Sapiently; sapiential.