thursword

Decuman

adjective 1. large or immense, as a wave.
2. (in ancient Rome) of or pertaining to the tenth cohort of a legion.

3. Also called decuman gate. (in ancient Rome) the main gate of a military camp, facing away from the enemy and near which the tenth cohort of the legion was usually stationed.

~Dictionary.com

Also apparently a Celtic saint from the 7th century