Where does “Spiritus asper” come from?

Spiritus asper (German) comes from Latin spiritus asper, from Ancient Greek δασὺ πνεῦμα, from Ancient Greek δασύς, from Ancient Greek πρωκτός, from Proto-Indo-European preHḱt-.

Spiritus asper (German): rough breathing; spiritus asper

Definitions

rough breathing; spiritus asper

Ancestry of “Spiritus asper”, step by step

Step	Language	Word	Meaning
1	Latin	spiritus asper	rough breathing
2	Ancient Greek	δασὺ πνεῦμα	rough breathing; the sound
3	Ancient Greek	δασύς	hairy, shaggy; downy; with the hair on
4	Ancient Greek	πρωκτός	anus, rectum
5	Proto-Indo-European	preHḱt-	—

Every word from Proto-Indo-European preHḱt- →Every word from Ancient Greek πρωκτός →Every word from Ancient Greek δασύς →