Where does “antimartyr” come from?

antimartyr (English) comes from English martyr, from Middle English martir, from Old French martire, from Ecclesiastical Latin martyr, from Ancient Greek μάρτυρ, from Ancient Greek μάρτυς — witness; martyr.

antimartyr (English): A martyr for an opposing or heterodox cause

Definitions

A martyr for an opposing or heterodox cause

Ancestry of “antimartyr”, step by step

antimartyr traces back through two separate lines of ancestry.

via English martyr

Step	Language	Word	Meaning
1	English	martyr	One who willingly accepts being put to death for...
2	Middle English	martir	martyr
3	Old French	martire	martyr
4	Ecclesiastical Latin	martyr	martyr, especially a Christian martyr
5	Ancient Greek	μάρτυρ	Aeolic form of μᾰ́ρτῠς
6	Ancient Greek	μάρτυς	witness; martyr

via English anti

Step	Language	Word	Meaning
1	English	anti	Opposed to something; That has a torsion angle...
2	English	anti-	Against, hostile to; Contrasting with the norm;...
3	Ancient Greek	ἀντι-	anti-, against; like, reminiscent of
4	Ancient Greek	ᾰ̓ντῐ́	opposite

Every word from Ancient Greek μάρτυς →Every word from Ancient Greek μάρτυρ →Every word from Ecclesiastical Latin martyr →