pur·ist 
(pyrĭst)
(pyrĭst)n.
One who practices or urges strict correctness, especially in the use of words.
pu·ristic (py-rĭstĭk) adj.
pu·risti·cal·ly adv.
- overcast
- overcasting
- overcautious
- overcautiously
- overcautiousness
- overcharge
- overclass
- overcloud
- overcoat
- overcoating
- overcome
- overcommit
- overcommitment
- overcompensate
- overcompensation
- overcompensatory
- overconfidence
- overconfident
- overconfidently
- overcorrect
- overcorrection
- overcritical
- overcritically
- overcrop
- overcrowd