Middle English word thee comes from Northern Yukaghir тэт, Proto-Indo-European *tóm, Old English forþon, Old English þȳ, Old English se, and later Proto-Germanic *sa (That.)
| Dictionary entry | Language | Definition |
|---|---|---|
| тэт | Northern Yukaghir (ykg) | |
| *tóm | Proto-Indo-European (ine-pro) | |
| forþon | Old English (ang) | |
| þȳ | Old English (ang) | |
| se | Old English (ang) | That, he (masculine singular form) The That (masculine singular form). |
| *tū | Proto-Indo-European (ine-pro) | |
| *sa | Proto-Germanic (gem-pro) | That. |
| forthy | Middle English (enm) | |
| *þiz | Proto-Germanic (gem-pro) | |
| sē | Old English (ang) | |
| þe | Old English (ang) | (demonstrative) the, he: late variant of se. |
| þē | Old English (ang) | |
| thyn | Middle English (enm) |