burden of proof (duty of a party in a legal proceeding to prove an assertion of fact) · burden of proof (obligation of the person making a claim in a dispute to provide sufficient evidence for their position)
Etymology tree Proto-Indo-European *h₃enh₂- Proto-Indo-European *-os Proto-Indo-European *h₃énh₂os Proto-Italic *onos Latin onuslbor. German Onus Learned borrowing from Latin onus (literally “burden”).