From Middle English dede, from Old English dēd, dǣd (“deed, act”), from Proto-West Germanic *dādi, from Proto-Germanic *dēdiz (“deed”), from Proto-Indo-European *dʰéh₁tis (“deed, action”). Analyzable through Proto-Germanic as do + -th. Doublet of thesis. The real estate sense derives from the fact that property deeds are traditionally used to demonstrate proof of ownership of a legal title in common law jurisdictions, such as England & Wales and most of the United States. Cognates Cognate with West Frisian died, Dutch daad (“deed, act”), German Low German Daad, German Tat (“deed, action”), Swedish, Norwegian and Danish dåd (“act, action”). The Proto-Indo-European root is also the source of Ancient Greek θέσις (thésis, “setting, arrangement”).
1
An action or act; something that is done.
One small deed can have one strong effect or more.
And Joseph said to them, What deed is this which ye have done?1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, Genesis 44:15:
2
A brave or noteworthy action; a feat or exploit.
They should accomplish both a knightly deed,1596, Edmund Spenser, “Book VI, Canto VII”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, →OCLC, stanza 4:
whose deeds some nobler poem shall adorn1667, John Dryden, Annus Mirabilis: The Year of Wonders, 1666. […], London: […] Henry Herringman, […], →OCLC, (please specify the stanza number):
3
Action or fact, as opposed to rhetoric or deliberation.
I have fulfilled my promise in word and in deed.
4
Law A legal instrument that is executed under seal or before a witness; sometimes required for certain legal activities, such as the transfer of certain kinds of property.
From Middle English dede, from Old English dēd, dǣd (“deed, act”), from Proto-West Germanic *dādi, from Proto-Germanic *dēdiz (“deed”), from Proto-Indo-European *dʰéh₁tis (“deed, action”). Analyzable through Proto-Germanic as do + -th. Doublet of thesis. The real estate sense derives from the fact that property deeds are traditionally used to demonstrate proof of ownership of a legal title in common law jurisdictions, such as England & Wales and most of the United States. Cognates Cognate with West Frisian died, Dutch daad (“deed, act”), German Low German Daad, German Tat (“deed, action”), Swedish, Norwegian and Danish dåd (“act, action”). The Proto-Indo-European root is also the source of Ancient Greek θέσις (thésis, “setting, arrangement”).