01 a. Of or pertaining to marriage; derived from marriage; connubial; nuptial; hymeneal; as, matrimonial rights or duties.
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Of or pertaining to marriage; derived from marriage; connubial; nuptial; hymeneal; as, matrimonial rights or duties.“If he relied upon that title, he could be but a king at courtesy, and have rather a matrimonial than a regal power.” — Bacon.