Comradery-Camaraderie | Commonly Confused Words

Comradery

A feeling of friendship and trust among people who spend a lot of time together

/ˌkæməˈrɑːdəri/

A feeling of good friendship and trust among people in a group

Both words are related to friendship and companionship, but camaraderie is the more widely accepted spelling.
Comradery is a less common variant, often considered informal or incorrect by some.
The term camaraderie originated from the French word camarade meaning comrade.
Remember that camaraderie has an "a" after the "m," similar to its French origin.
In professional or formal writing, its safer to use camaraderie' to avoid criticism.