- Fidelity to one's lord; the feudal obligation by which the
tenant or vassal was bound to be faithful to his lord; the special oath
by which this obligation was assumed; fidelity to a superior power, or
to a government; loyality. It is no longer the practice to exact the
performance of fealty, as a feudal obligation. - Fidelity; constancy; faithfulness, as of a friend to a
friend, or of a wife to her husband.