It's plain that constellate is related to constellation, and, indeed, things that "constellate" (or "are constellated") cluster together like stars in a constellation. Both words derive ultimately from the Latin word for "star," which is stella. Constellation (which came to us by way of Middle French from Late Latin constellation-, constellatio) entered the language first-it dates to at least the 14th century. Constellate didn't appear until a full 300 years later.
Examples of constellate in a Sentence
the museum has constellated many of the artist's most glorious paintings into one stunning exhibition