1. thou /ðaʊ/= you, used when speaking to one person
e.g. thou hast (= you have)
2. thee /ðiː/= you; object form of thou; used when speaking to one person
3. thy /ðaɪ/ = your: the possessive form of thou, used when speaking to one person
4. tis /tɪz/ = short form of it is:
'Tis the season to be jolly!