Where does “[[skýva]]/[[skýba]]” come from?

[[skýva]]/[[skýba]] (Old Czech) comes from Old High German scība.

Ancestry of “[[skýva]]/[[skýba]]”, step by step

Step	Language	Word	Meaning
1	Old High German	scība	—

[[skýva]]/[[skýba]] — Etymology, Origin & Word History | Etymology Explorer