having the character of a traitor
; treacherous; perfidious.
of the nature
of treason; treasonable: a traitorous act.
Origin: 1350–1400; Middle English treterous, traytrous Related forms
< Old French traitreus;
1–3. disloyal, treasonous, faithless.
is always a great word to know.
So is quincunx. Does it mean: