Fidelitas
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Lat. Fealty, (q. v.) Fidelitas. De nullo tenemento, quod tenetur ad terminum, fit homagii; fit tamen inde fidelitatis sacramentum.
Co. Litt. 676. Fealty.
For no tenement which is held for a term is there the oath of homage, but there is the oath of fealty.