back·date 
(băkdāt′)
(băkdāt′)tr.v. back·dat·ed, back·dat·ing, back·dates
To mark or supply with a date that is earlier than the actual date: backdate a check.
- subcarrier
- subcartilaginous
- subcategory
- subcelestial
- subcellular
- subchaser
- subclass
- subclavian
- subclavian artery
- subclavian vein
- subclimactic
- subclimax
- subclinical
- subclinically
- subcommittee
- subcompact
- subcomponent
- subconference
- subconscious
- subconsciously
- subconsciousness
- subcontinent
- subcontinental
- subcontract
- subcontractor