courser

noun

Etymology: From Middle English courser, Anglo-Norman cursier, corser, from Medieval Latin cursārius. By surface analysis, course + -er. Doublet of corsair and hussar.

1. A dog used for coursing.
2. A hunter who practises coursing.
3. A swift horse; a racehorse or a charger.

   “Sir Launfal is instantly set at liberty, and vaulting on the courser his mistress had bestowed on him, and which was held at hand by his squire, he follows her out of the town.”

4. Any of several species of terrestrial bird in the genera Cursorius and Rhinoptilus.
5. A stone used in building a course.