Where does “Mohngewächs” come from?

Mohngewächs (German) comes from German Gewächs, from German wachsen, from Middle High German wahsen, from Old High German wahsan, from Proto-West Germanic wahsan, from Proto-Germanic wahsijaną, from Indo-European *h₂weks-.

Mohngewächs (German): any plant of the family Papaveraceae within the order Ranunculales – many plants related to the poppy

Definitions

any plant of the family Papaveraceae within the order Ranunculales – many plants related to the poppy

Ancestry of “Mohngewächs”, step by step

Mohngewächs traces back through two separate lines of ancestry.

via German Gewächs

Step	Language	Word	Meaning
1	German	Gewächs	plant
2	German	wachsen	to grow; to grow, to increase; to wax
3	Middle High German	wahsen	to grow
4	Old High German	wahsan	to grow
5	Proto-West Germanic	wahsan	to grow
6	Proto-Germanic	wahsijaną	to grow
7	Indo-European	*h₂weks-	—

via German Mohn

Step	Language	Word	Meaning
1	German	Mohn	poppy
2	Old High German	muoma	aunt, mother's sister
3	Proto-West Germanic	mōmā	mama, mother
4	Proto-Germanic	mōmǭ	mama, mother; aunt, auntie
5	Proto-Indo-European	méh₂-méh₂-	—
6	Proto-Indo-European	méh₂-	mother; mama, mother

Every word from Indo-European *h₂weks- →Every word from Proto-Germanic wahsijaną →Every word from Proto-West Germanic wahsan →