ambrosiac

Either from ambrosia +‎ -ac or Latin ambrosiacus;^[1] compare French ambrosiaque.

ambrosiac (comparative more ambrosiac, superlative most ambrosiac)

1. (rare) Having the qualities of ambrosia; delicious.

   Synonyms: ambrosial, ambrosian

   • 1629 (first performance), B[en] Jonson, The New Inne. Or, The Light Heart. […], London: […] Thomas Harper, for Thomas Alchorne, […], published 1631, →OCLC, Act III, scene ii, signature E3, verso:

     I reliſh not theſe philoſophicall feaſts; / Giue me a banquet o’ ſenſe, like that of Ovid: / A forme, to take the eye; a voyce, mine eare; / Pure aromatiques, to my ſent; a ſoft, / Smooth, deinty hand, to touch; and, for my taſte, / Ambroſiack kiſſes, to melt downe the palat.

• “ambrosiac”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.