Wit

Probably most people are familiar with the familiar pronouns of early Modern English, such as thee. However, Old English had a whole group of pronouns for 'we two.' 

"Wit" means "we two" in Old English, a Germanic language spoken in England until about the 12th Century, which evolved into the English we speak today. Now completely lost, "wit" was part of an extinct group of pronouns used for exactly two people: the dual form, which also includes "uncer" or "unker" ("our" for two people) and "git" ("you two"). That dual form vanished from the English language around the 13th Century....

To illustrate the poetic power of the dual, Birkett gives the example of a love poem, known as Wulf and Eadwacer, that is over 1,000 years old. In the poem, a woman yearns for her lover, Wulf, who is separated from her because he was rejected by her clan. The last line reads, in a modern English translation:

"One can easily split what was never united,

the song of the two of us."

In the Old English original, the words for "the song of the two of us" are "uncer giedd" – meaning "our song", but just for two people.

 Part of a longer article from the BBC.