Webster's Revised Unabridged Dictionary · 1913

Parol

Parol , noun

[See Parole, the same word.]

1.
A word; an oral utterance. [Obsolete]
2.
(Law) Oral declaration; word of mouth; also, a writing not under seal. — Blackstone

Parol , adjective

Given or done by word of mouth; oral; also, given by a writing not under seal; as, parol evidence.
Collocations (2)
Parol arrest (Law) , an arrest in pursuance of a verbal order from a magistrate.
Parol contract (Law) , any contract not of record or under seal, whether oral or written; a simple contract. — Chitty. Story