Deed
Old English dēd, dǣd, of Germanic origin; related to Dutch daad and German Tat, from an Indo-European root shared by do1.
wiktionary
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.
etymonline
deed (n.)
"that which is done, acted, or performed, whether good or bad, great or small," Old English dæd "a doing, act, action; transaction, event," from Proto-Germanic *dethi- (source also of Old Saxon dad, Old Norse dað, Old Frisian dede, Middle Dutch daet, Dutch daad, Old High German tat, German Tat "deed, thing done," Gothic gadeþs "a putting, placing"), from PIE *dheti- "thing laid down or done; law; deed" (source also of Lithuanian dėtis "load, burden," Greek thesis "a placing, setting"), suffixed form of root *dhe- "to set, place, put" (compare do).
In law, "written document authenticated by seal of the person whose will it declares, especially for the purpose of conveying real estate" is from early 14c. As a verb, "convey or transfer by deed," 1806, American English. Related: Deeded; deeding.
