<span class="searchmatch">cælestial</span> (not comparable) Archaic spelling of celestial. 1790, Charles Vallencey, Collectanea de Rebus Hibernicis[1], page 191: THE <span class="searchmatch">CÆLESTIAL</span> ALPHABET...
spelling is etymologically inconsistent, and may be considered an erroneous variant of <span class="searchmatch">cælestial</span>. The latter, however, is not so common as this spelling....
Therefore do we recite this Seraphick Theology delivered to us, that in that <span class="searchmatch">cæleſtial</span> Hymnody we may communicate with the Heavenly Hoſt … hymn hymnal hymnally...
and Célestial English Wikipedia has an article on: celestial Wikipedia <span class="searchmatch">cælestial</span> (archaic), cælestiall (obsolete), celestiall (obsolete), cœlestial (archaic...