Trousers, as in, long pants that cover the legs, appear to have been invented more or less simultaneously and more or less independently in Persia and Scythia. We can see in figurative decorations that the styles were quite different, but men commonly wore trousers in both places.
This might be because the men of both nations spent a lot of time on horseback. Since stirrups hadn't been invented yet, horseriding in a Greek chiton must have been eye-opening, even with a rag to wrap up the goodies.
Nevertheless the Greeks never had any time for trousers, who thought them weird and laughable, and associated them with the hated enemy. A Greek who copied Persian dress could expect heckling at best. Not even Alexander the Great was spared when he copied the Persians.
And therein lies a problem for poor Gary.
My second book includes a man who wears trousers. But I am reliably informed that trousers is not the most common word in the US, where pants is preferred. For the rest of the civilized world, pants means something quite different.
Incidentally, this means that when an American describes a writer as a pantster, it conjures an image in British readers that certainly wasn't intended.
I confess my mind rebels at the thought of calling them anything but trousers, but I can repress revulsion long enough to do a global replace if necessary.
What do you think? Will the Americans cope with trousers? Or shall my character wear pants?