Where does “упестряться” come from?

упестряться (Russian) comes from Russian упестря́ть, from Russian пёстрый, from Old East Slavic пьстръ, from Proto-Slavic pьstrъ, from Proto-Slavic pьsrъ, from Proto-Balto-Slavic piśras, from Proto-Indo-European piḱrós, from Proto-Indo-European peyḱ- — to hew, cut out; to stitch, embroider, sting; to...

Ancestry of “упестряться”, step by step

StepLanguageWordMeaning
1Russianупестря́тьto variegate, to diversify, to vary
2Russianпёстрыйvariegated, motley; multicoloured; mixed
3Old East Slavicпьстръ
4Proto-Slavicpьstrъvariegated
5Proto-Slavicpьsrъ
6Proto-Balto-Slavicpiśras
7Proto-Indo-Europeanpiḱrós
8Proto-Indo-Europeanpeyḱ-to hew, cut out; to stitch, embroider, sting; to...
Every word from Proto-Indo-European peyḱ-Every word from Proto-Indo-European piḱrósEvery word from Proto-Balto-Slavic piśras