The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
Appendix I
Indo-European Roots
ENTRY:
wer-3
DEFINITION:
To perceive, watch out for. Derivatives include wary, lord, reward, guard, and panorama. I. O-grade form *wor-.1. Suffixed form *wor-o-.a.wary, from Old English wær, watchful; b.aware, from Old English gewær, aware (ge-, collective and intensive prefix; see kom); c.ware2, from Old English warian, to beware. a–c all from Germanic *waraz.2. Suffixed form wor-to-.a. (i)ward; lord, steward, from Old English weard, a watching, keeper; (ii)warder2, from Old English weardian, to ward, guard; b.warden; award, reward, wardrobe, from Old North French warder, to guard; c.guard; garderobe, regard, from Old French guarder,to guard; d.rearward2, from Anglo-Norman warde, guard. a–d all from Germanic *wardaz, guard, and *wardn, to guard. 3.ware1, from Old English waru, goods, protection, guard, from Germanic *war.4. Suffixed form *wor-wo-.Arcturus, pylorus, from Greek ouros, a guard. 5. Probably variant *(s)wor-,*s(w)or-.ephor, panorama, from Greek horn, to see. II. Suffixed (stative) form *wer--.revere1, from Latin verr, to respect, feel awe for. (Pokorny 8. er- 1164.)
n, to guard. 3. ware1, from Old English waru, goods, protection, guard, from Germanic *war
n, to see. 
-. revere1, from Latin ver
, to respect, feel awe for. (Pokorny 8. 
er- 1164.) 
