labarum

Etymology
From.

Noun

 * 1) The Roman military standard adopted by Constantine I. The banner was known for its Christian chi-rho sign -.
 * 2) * 1658: Nor shall we urge the labarum, and famous Standard of Constantine, or make further use thereof, than as the first Letters in the Name of our Saviour Christ — Sir Thomas Browne, The Garden of Cyrus (Folio Society 2007, p. 168)

Etymology
Maybe from. See also Latin, , ,.

Noun

 * 1) labarum

Etymology
.