preform

Short definition from Wiktionary

Noun

1. 1
   An object that has undergone preliminary shaping but is not yet in its final form.
2. 2
   The rough, incomplete and unused basic form of a stone tool.
3. 3
   A word that is no longer in use, but has been reconstructed from current ones.

Verb

1. 1
   To shape something before some other operation.
2. 2
   Misspelling of perform.