Where does “кнопочка” come from?

кнопочка (Russian) comes from Russian кнопка, from German knopf, from Middle High German knopf, from Old High German knopf, from Proto-Germanic knuppô — knob; lump, clod.

кнопочка (Russian): (small) button (to press)

Definitions

(small) button (to press)

Ancestry of “кнопочка”, step by step

Step	Language	Word	Meaning
1	Russian	кнопка	button; drawing pin, thumbtack; press button,...
2	German	knopf	button fastener
3	Middle High German	knopf	—
4	Old High German	knopf	—
5	Proto-Germanic	knuppô	knob; lump, clod

Every word from Proto-Germanic knuppô →Every word from Old High German knopf →Every word from Middle High German knopf →