n. pl. fe·al·ties
a. The fidelity owed by a vassal to his feudal lord.
b. The oath of such fidelity.
2. Allegiance. See Synonyms at fidelity.
[Middle English fealtye, from Old French fealte, from Latin fidēlitās, faithfulness, from fidēlis, faithful, from fidēs, faith; see bheidh- in the Appendix of Indo-European roots.]
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