'Fancies' in the Bible

See to it that no one takes you captive through philosophy and empty deception [pseudo-intellectual babble], according to the tradition [and musings] of mere men, following the elementary principles of this world, rather than following [the truth—the teachings of] Christ.

For a time is coming when they will not tolerate wholesome instruction, but, wanting to have their ears tickled, they will find a multitude of teachers to satisfy their own fancies;