pur·sui·vant /ˈpɝsɪvənt, swɪ-/
Pur·sui·vant n. [Written also poursuivant.]
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.
Pur·sui·vant, v. t. To pursue. [Obs. & R.]
Their navy was pursuivanted after with a horrible tempest. --Fuller.