"act of precluding; state of being precluded," 1610s, from Latin praeclusionem (nominative praeclusio) "a shutting off," noun of action from past-participle stem of praecludere "to close, shut off; impede" (see preclude).
preciseness
precisian
precision
pre-classical
preclude
preclusion
preclusive
precocious
precocity
precognition
pre-Columbian