Where does “Vokabellernen” come from?

Vokabellernen (German) comes from German Vokabel, from Latin vocābulum, from Latin vocō, from Latin vōx, from Proto-Italic wōks, from Proto-Indo-European wṓkʷs, from Proto-Indo-European wekʷ- — to speak, to sound out.

Vokabellernen (German): vocabulary learning

Definitions

vocabulary learning

Ancestry of “Vokabellernen”, step by step

Vokabellernen traces back through two separate lines of ancestry.

via German Vokabel

Step	Language	Word	Meaning
1	German	Vokabel	piece of vocabulary
2	Latin	vocābulum	word
3	Latin	vocō	to call, summon, beckon (with one's voice)
4	Latin	vōx	voice
5	Proto-Italic	wōks	voice
6	Proto-Indo-European	wṓkʷs	voice, speech
7	Proto-Indo-European	wekʷ-	to speak, to sound out

via German lernēn

Step	Language	Word	Meaning
1	German	lernēn	—
2	Middle High German	lernen	—
3	Old High German	lernēn	to learn, study
4	Proto-West Germanic	*liʀnēn	—

Every word from Proto-Indo-European wekʷ- →