1/ðaʊ/Show Spelled Pronunciation[thou]Show IPA,pronoun, singular, nominative thou;possessive thy or thine;objective thee;plural, nominative you or ye;possessive your or yours;objective you or ye;verb
–pronoun
1.
Archaic (except in some elevated or ecclesiastical prose). the personal pronoun of the second person singular in the nominative case (used to denote the person or thing addressed): Thou shalt not kill.
2.
(used by the Friends) a familiar form of address of the second person singular.
–verb (used with object)
3.
to address as “thou.”
–verb (used without object)
4.
to use “thou” in discourse.
Origin: bef. 900; ME; OE thū; c. G, MD du, ON thū, Goth thu, OIr tú, Welsh, Cornish ti, L tū, Doric Gk tý, Lith tù, OCS ty; akin to Skt tvam; (v.) late ME thowen, deriv. of the pronoun