The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
Appendix I
Indo-European Roots
ENTRY:
ud-
DEFINITION:
Also d-. Up, out. Derivatives include utmost, carouse, outlaw, but, and hubris. 1a.out; utmost, from Old English t, out; b.carouse; auslander, from Old High German z, out; c.outlaw, from Old Norse t, out; d.uitlander, from Middle Dutch ute,uut, out; e.utter1, from Middle Low German t, out; f.utter2, from Old English tera, outer, from Germanic suffixed (comparative) form *t-era-;g.but; about, from Old English btan,bte, outside (adverb), from Germanic compound *bi-tana, at the outside (*bi-, by, at; see ambhi). ag all from Germanic *t-, out. 2. Extended form *uds.a.ersatz, from Old High German irsezzan, to replace, from ir-, out; b.ort, from Middle Dutch oor, out; c. Germanic compound *uz-dailjam (see dail-); d.Ursprache, from Old High German ur-, out of, original. ad all from Germanic *uz,*uz-, out. 3. Suffixed (comparative) form *ud-tero-.hysteresis, hysteron proteron, from Greek husteros, later, second, after. 4.hubris, from Greek compound hubris, violence, outrage, insolence (bri-, perhaps heavy, violent; see gwer-1), from hu-.5.vigorish, from Russian vy-, out. (Pokorny d- 1103.)