поже́ртвовать (Russian) comes from Russian же́ртвовать, from Russian же́ртва, from Church Slavonic жрьтва, from Proto-Slavic žьrtva, from Proto-Slavic -tva, from Proto-Indo-European -tweh₂, from Proto-Indo-European -eh₂.
поже́ртвовать (Russian): to donate