Where does “sklenička” come from?

sklenička (Czech) comes from Czech sklenice, from Czech sklo, from Old Czech stklo, from Proto-Slavic stьklo, from Gothic 𐍃𐍄𐌹𐌺𐌻𐍃, from Proto-Germanic stiklaz, from Proto-Germanic stikiz, from Proto-Indo-European (s)teyg- — to be sharp; to sting.

Ancestry of “sklenička”, step by step

StepLanguageWordMeaning
1Czechskleniceglass drinking vessel
2Czechskloglass
3Old Czechstkloglass
4Proto-Slavicstьkloglass
5Gothic𐍃𐍄𐌹𐌺𐌻𐍃beaker, chalice, goblet
6Proto-Germanicstiklaz—
7Proto-Germanicstikiza sticking, prick
8Proto-Indo-European(s)teyg-to be sharp; to sting
Every word from Proto-Indo-European (s)teyg- →Every word from Proto-Germanic stikiz →Every word from Proto-Germanic stiklaz →