Where does “упестриться” come from?

упестриться (Russian) comes from Russian упестри́ть, 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 “упестриться”, step by step

StepLanguageWordMeaning
1Russianупестри́тьto 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 piḱrós →Every word from Proto-Balto-Slavic piśras →