Webster's Revised Unabridged Dictionary · 1913

Pursuivant

Pursuivant , noun

[French poursuivant, from poursuivre. See Pursue, and compare Pursuant.]

1.
(Heralds' College) A functionary of lower rank than a herald, but discharging similar duties; -- called also pursuivant at arms; an attendant of the heralds. Also used figuratively.
The herald Hope, forerunning Fear, And Fear, the pursuivant of Hope. — Longfellow
2.
The king's messenger; a state messenger.
One pursuivant who attempted to execute a warrant there was murdered. — Macaulay

Pursuivant , transitive verb

To pursue. [Obsolete & Rare]
Their navy was pursuivanted after with a horrible tempest. — Fuller