a. Obs. [f. L. fidēli-s + -OUS.] Faithful.
1650. S. Sheppard, Candido, 14. I have found thee cordially fidelious.
1655. Marrow of Complements, 114. Your fidelious servitour.
1656. S. Holland, Don Zara (1719), 16. Whole Warrens of starvd Fleas, that bit like Ban-dogs the Champion and his fidelious Land-loper Soto, that they thought themselvs delivered over to the disposall of Demogorgons diminutive Dæmons.