ere 
(âr)
(âr)prep.
Previous to; before.
conj.
Rather than; before.
[Middle English er, from Old English ǣr; see ayer- in the Appendix of Indo-European roots.]
- prevent
- preventability
- preventable
- preventative
- prevent defense
- preventer
- preventibility
- preventible
- prevention
- preventive
- preventive detention
- preventively
- preventiveness
- preverb
- preverbal
- preview
- previous
- previously
- previousness
- previous question
- previous to
- previse
- prevision
- previsional
- previsionary