sapid (adj.)

"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.

1610s, "without taste or perceptible flavor," from French insipide "insipid" (16c.), from Late Latin inspidus "tasteless," from in- "not" (see in- (1)) + Latin sapidus "tasty," from sapere "have a taste" (also "be wise;" see sapient). Figurative meaning "uninteresting, dull" first recorded in English 1640s, probably from Medieval Latin or the Romance languages, where it was a secondary sense.

In ye coach ... went Mrs. Barlow, the King's mistress and mother to ye Duke of Monmouth, a browne, beautifull, bold, but insipid creature. [John Evelyn, diary, Aug. 18, 1649]

Related: Insipidly.