An Early Irish Jewel carrying Emblems of Many Degrees and showing Sojourner with Sword and Trowl.

Sojourner, a subject of its own. Let’s quote Jones a bit more.
The word ‘sojourner’ also comes from the Latin, and incorporates the word diurnus, meaning ‘daily.’ Literally to ‘sojourn’ is to dwell in a place for a time, to live somewhere as a stranger and not as a member of the community.
At the time of the Royal Arch Union, Sojourners in many chapters were known as the junior, Senior, and Principal Sojourners respectively, and their duties were to guard the veils.
The Freemasons Book of the Royal Arch by Bernard E. Jones (1957)