Has the meaning of misogynist changed in recent history?

Yes, it has.

Originally it meant "hatred of women" and now it means "entrenched prejudice against women".

It happened last year (I think), when the Opposition leader of Australia (at the time), Tony Abbot mocked the Prime Minister (at the time), Julia Gillard's body in an attempt to take a stab at her for being a woman.

http://www.abc.net.au/news/2012-10-17/misogyny-red...

"Has the meaning of misogynist changed in recent history? "

The meaning has remained the same. Misogyny is the hatred of women. It's just that it's usage has increased, and crept into areas that do not fit the definition. Usually a feminist who is losing an argument will resort to calling their opponent a misogynist when it is not appropriate in an attempt to shame or silence them.

As with all other overused shaming words, this one is losing it's effectiveness and power to coerce.

I find that many here, especially feminists are redefining words in ways that are very different from their normal accepted meaning. A misogynist is someone who hates women, but feminists tend to use it to describe anyone who criticizes feminist policies of advantage. We see the same with words like oppression, enslaved, privilege and rights. Ever notice how feminists often refer to polices that advantage women over men as "women's rights" and then criticize people for being against "rights" Rights of course apply to everyone equally. Policies that advantage one gender one the other are not rights.

Misogynist : (n), from Miso + Gyn: Someone who use a tackle rigging to load or unload Japanese soy-based spices on a cargo ship.

It changes daily.

Words change m8, get used to it.