Dutch word schildknaap comes from Dutch knaap, Dutch schild (Shield.)

Detailed word origin of schildknaap

Dictionary entry	Language	Definition
knaap	Dutch (nld)	(by extension) Any human male, regardless of age. (chiefly, in compounds) A servant, helper. A big one, whopper, said of a creature or an object. Boy, usually adolescent.
schild	Dutch (nld)	Shield.
schildknaap	Dutch (nld)	(figuratively) acolyth, side-kick etc.. Squire, a knight's attendant and/or apprentice.

Words with the same origin as schildknaap