The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
Appendix I
Indo-European Roots
ENTRY:
w-ro-
DEFINITION:
Man. Contracted from *wi-ro-, derivative of wei-. Derivatives include werewolf, world, and virtuoso. 1a.werewolf, wergeld, from Old English wer, man; b. (i)world, from Old English weorold, world; (ii)Weltanschauung, Weltschmerz, from Old High German weralt, world. Both (i) and (ii) from Germanic compound *wer-ald-, “life or age of man” (*-ald-, age; see al-2); c.loup-garou, from Old French garoul, werewolf, from Frankish *wer-wulf, “man-wolf” (*wulf, wolf; see wkwo-). Both a and b from Germanic *weraz, from shortened form *wiraz.2.virago, virile, virtue, virtuosa, virtuoso; decemvir, decurion, duumvir, triumvir, from Latin vir, man. 3.curia, from Latin cria, curia, court, possibly from *co-vir-ia, “men together” (*co-, together; see kom). (Pokorny ro-s 1177.)
-ro-
-ro-, derivative of wei
kwo-). Both a and b from Germanic *weraz, from shortened form *wiraz. 2. virago, virile, virtue, virtuosa, virtuoso; decemvir, decurion, duumvir, triumvir, from Latin vir, man. 3. curia, from Latin c
ria, curia, court, possibly from *co-vir-ia, “men together” (*co-, together; see kom). (Pokorny 
ro-s 1177.) 
