The word thou is a second-person singular pronoun in English. It is now largely archaic, having been replaced in most contexts by the word you, although it remains in use in parts of Northern England and in Scots. Thou is the nominative form; the oblique/objective form is thee ; the possessive is thy (adjective) or thine ; and the reflexive is thyself. When thou is the grammatical subject of a finite verb in the indicative mood, the verb form typically ends in -(e)st, but in some cases just -t. Some modern or dialect speakers of thou use thee as the subject and conjugate the word with is/was, e.g. thee is, thee was, thee has, thee shall. However, this is not considered standard.
Most modern English speakers encounter "thou" predominantly in the works of Shakespeare; in the works of other Renaissance, medieval and early modern writers; and in the King James Bible.
English is a West Germanic language in the Indo-European language family, whose speakers, called Anglophones, originated in early medieval England. The namesake of the language is the Angles, one of the ancient Germanic peoples that migrated to the island of Great Britain.
The opening of Beowulf, an Old English epic poem handwritten in half-uncial script between 975 AD and 1025 AD: Hƿæt ƿē Gārde/na ingēar dagum þēod cyninga / þrym ge frunon... ("Listen! We of the Spear-Danes from days of yore have heard of the glory of the folk-kings...")
The University of Oxford in Oxford, the world's oldest English-speaking university and world's second-oldest university, founded in 1096
The University of Cambridge in Cambridge, the world's second-oldest English-speaking university and world's third-oldest university, founded in 1209