os 3 
(ōs)
(ōs)n. pl. os·ar (ōsär′)
See esker.
[Swedish ås, ridge, from Old Norse āss.]
- required
- requirement
- apostrophic
- apostrophic
- apostrophize
- apotemnophilia
- apothecaries' measure
- apothecaries' weight
- apothecary
- apothecial
- apothecium
- apothegm
- apothegmatic
- apothegmatical
- apothegmatically
- apothem
- apotheosis
- apotheosize
- apotropaic
- apotropaically
- app
- APP
- Appalachia
- Appalachian
- Appalachian dulcimer