Where does “heroisch” come from?

heroisch (German) comes from Latin heroicus, from Ancient Greek ἡρωϊκός, from Ancient Greek -ικός, from Ancient Greek -κός, from Proto-Indo-European -ḱos — -y, -ic.

heroisch (German): heroic

Definitions

heroic

Ancestry of “heroisch”, step by step

heroisch traces back through two separate lines of ancestry.

via Latin heroicus

Step	Language	Word	Meaning
1	Latin	heroicus	heroic, epic
2	Ancient Greek	ἡρωϊκός	of the heroes
3	Ancient Greek	-ικός	of or pertaining to, in the manner of; -ic
4	Ancient Greek	-κός	forms adjectives with the sense of 'of or...
5	Proto-Indo-European	-ḱos	-y, -ic

via German Heros

Step	Language	Word	Meaning
1	German	Heros	hero
2	Latin	hērōs	demigod, hero

Every word from Proto-Indo-European -ḱos →