noun

• (archaic) A centaur, half-human and half-horse.
  "the dreadful Sagittary / Appals our numbers"
• (heraldry, often capitalized) A mythical compound creature, resembling a centaur (half-human, half-horse) or a half-human, half-lion, often armed with a bow and arrows.
  "Gules, three Sagittaries - or, three torteaux. Stephen's cognizance was a Sagittary, because he entered England when the Sun was in that sign, and was greatly indebted for his success to mounted archers."
• (archaic) An archer; by extension, a coin used in ancient Persia and Greece featuring an archer.
  "Born till Crassus perished by them, at which time a Sagittary was blazoned in their Royal Standard: [...] Darius being stamped on the one side and a Sagittary (his coat-armour) on the other; memorized by Plutarch in the life of Agesilaus, who complained that his design of conquering Asia was prevented by thirty thousand Sagittaries; meaning a Bribe of so many[…]"

name

• (astronomy) Obsolete form of Sagittarius.