Fidelity's a notion that at its most abstract level implies a truthful connection to a source or sources. Its original meaning dealt with loyalty and attentiveness to one's duty to a lord or a king, in a broader sense than the related concept of fealty. Both derive from the Latin word fidēlis (A III adjective), meaning "faithful or loyal" In modern human relationships, the term can refer to sexual monogamy. In western culture this often means adherence to marriage vows, or of promises of e… (More on Fidelity)