In an exquisite manner; with delicate refinement, meticulous attention, or subtle beauty.
From exquisitively (likely via exquisitive + -ly, though more commonly exquisite + -ly). The -ly adverb suffix transforms the adjective into a manner adverb.
English speakers almost always say 'exquisitely' instead of 'exquisitively,' making this word a ghost—it technically should exist by English word-formation rules but nobody actually uses it in practice.
Complete word intelligence in one call. Free tier — 50 lookups/day.