33. The derivation and meaning of the word Labarum or
Laborum, which is employed by Gregory Nazianzen, Ambrose,
Prudentius, etc., still remain totally unknown, in spite of
the efforts of the critics, who have ineffectually tortured
the Latin, Greek, Spanish, Celtic, Teutonic, Illyric,
Armenian, etc in search of an etymology. See Ducange, in
Gloss Med. and infim. Latinitat. sub voce Labarum, and
Godefroy, ad Cod. Theodos. tom. ii. p. 143.