IPA: /ˈtaɪθə.bəl/
KK: /ˈtaɪθəbl/
Referring to something that is required to pay tithes, which are a portion of income or produce given to support a religious organization.
The farmer's income was tithable, so he set aside a portion for the church.
Tithable → It is formed from "tithe" (from Old English *teotha*, meaning a tenth part) and "-able" (meaning capable of or suitable for). The word "tithable" refers to something that is suitable for being tithed or subject to the payment of a tithe.
Think of a 'tithe' as a 'tenth part' of something, and remember that 'tithable' means something that is suitable for giving a tenth.