Thoughts? Beast and Disillusionment Charm

[Steve]

No: HPFGUIDX 47727

bboy_mn wonders:

I was recently reading 'Fantastic Beasts and Where to Find Them'(pg
ixi) and came across a 'Disillusionment Charms'. A charm you place on
a magical creature to keep muggles from spotting it.

Maybe I'm being to literal, but 'disillution' means free or deprived
of all illusion or being DISenchanted. Of course, disenchanted means
free from illusion or false belief; undeceive.

So, isn't that backwards? Shouldn't it be an Illusionemnt Charm or an
Anti-Disillusionment Charm, meaning the placement of illusion, false
beliefs, and enchantments, or acting against the lose or removal of
illusion and/or false belief?

This popped into my head because we were discussing the charms that
might be placed around the Burrow to keep muggles from noticing it. 

Any thoughts? 

bboy_mn