Answer: pretrain

AnswerCrossword Clue
PRETRAINDiscipline beforehand.
pretrainto become trained
pretrainto make fit
pretrainconnected railroad cars pulled by a locomotive
pretrainseries of events, ideas, etc.
pretrainto train beforehand
pretrainmoving line of persons, vehicles, etc.
pretrainto aim, as a gun
pretrainto form the behavior of by discipline and instruction
pretrainpart of a long skirt that trails behind