Where does “злорадствовать” come from?

злорадствовать (Russian) comes from Russian злорадство, from Russian рад, from Russian радиан, from Latin radius, from English -án, from Middle English -an.

злорадствовать (Russian): to gloat, to feel schadenfreude/epicaricacy

Definitions

to gloat, to feel schadenfreude/epicaricacy

Ancestry of “злорадствовать”, step by step

Step	Language	Word	Meaning
1	Russian	злорадство	schadenfreude
2	Russian	рад	glad; rad; API • m inan
3	Russian	радиан	—
4	Latin	radius	ray; staff, rod; spoke
5	English	-án	Of or pertaining to;. Often added to words of Latin origin, but also used with words of other origins. When a word ends in a
6	Middle English	-an	—

Every word from Middle English -an →Every word from English -án →Every word from Latin radius →