cryptic — A cryptic remark or message contains a hidden meaning or is difficult to understand.
triptych — Fine Arts. a set of three panels or compartments side by side, bearing pictures, carvings, or the like.
Three-syllable rhymes
ecliptic — Astronomy. the great circle formed by the intersection of the plane of the earth's orbit with the celestial sphere; the apparent annual path of the sun in the heavens. an analogous great circle on a terrestrial globe.
