Praecoces :: Praecoces (n. pl.) A division of birds including those whose young are able to run about when first hatched.
Praecocial :: Praecocial (a.) Of or pertaining to the Praecoces.
Praecognita :: Praecognita (n. pl.) This previously known, or which should be known in order to understand something else..
Praecommissure :: Praecommissure (n.) A transverse commissure in the anterior part of the third ventricle of the brain; the anterior cerebral commissure.