"feint" and "feign": Are they synomyms?

Solution 1:

A feint (noun) is primarily a deceptive move, such as in fencing or military maneuvering. It can also mean presenting a feigned appearance. Feint can also be a verb, but in that case it simply means to execute a feint.

To feign (verb) is to deceive; either by acting as if you're something or someone you're not, or lying.

There is some overlap between particular meanings of the two words (For example, his ignorance was a feint, he was feigning ignorance), but mostly they are separate.

Both words come from the French feindre, which means to "pretend, represent, imitate, shirk".

Source: Dictionary.com on feint, feign; Online Etymology Dictionary on feint

Solution 2:

A feint is the result of feigning, just as a gift is the result of giving. Feigning an attack (originally in fencing, but extended to other military contexts, and then generally) took on a life of its own, so that a single word was needed; feint as a verb seems (seemed?) the obvious choice.