As nouns the difference between fidayee and fedayee
is that fidayee is a soldier or freedom fighter who is willing to die for their cause while fedayee is an arab guerilla or commando.
fidayee
English
Noun
(en-noun)
A soldier or freedom fighter who is willing to die for their cause. fedayee
English
Noun
(fedayeen)
An Arab guerilla or commando.
References
* thefreedictionary.com