antecedent

ot noun

1. Any thing that precedes another thing, especially the cause of the second thing.
2. An ancestor.
3. (grammar) A word, phrase or clause referred to by a pronoun.
4. The conditional part of a hypothetical proposition, i.e. p \rightarrow q, where p is the antecedent, and q is the consequent.

sifat adjective

1. Earlier, either in time or in order. an antecedent cause
2. Presumptive. an antecedent improbability