Merriam-Webster Online Dictionary
tithe (verb)transitive verb
1.
to pay or give a tenth part of especially for the support of the church
2.
intransitive verb
to levy a tithe on to give a tenth of one's income as a tithe
1.
a tenth part of something paid as a voluntary contribution or as a tax especially for the support of a religious establishment
2.
the obligation represented by individual - tithes
3.
- tenth , broadly a small part
4.
a small tax or levy