proem /prōˈem/

1. An introduction
2. A prelude
3. A preface

proemial /prō-ēˈmi-əl/ adjective

• attenuated vaccines
• attenuates
• attenuating
• attenuation
• attenuations
• attenuator
• attenuators
• attercop
• attercops
• attest
• attestable
• attestation
• attestations
• attestative
• attested
• attester
• attesters
• attesting
• attestor
• attestors
• attests
• Att.-Gen.
• at that
• at the bar
• at the best of times