/ taɪð; NAmE / noun
1.
(in the past) a tenth of the goods that sb produced or the money that they earned, that was paid as a tax to support the Church
2.
(in some Christian Churches today) a tenth of a person's income, that they give to the Church
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WORD ORIGIN
Old English tēotha (adjective in the ordinal sense tenth , used in a specialized sense as a noun), tēothian (verb).