Burneika

Perhaps connected with lit. mouth, cf. burneika „tokia vaistažolė“ (LKŽ I 1195). Relationship with bro. surn. Буpнейка, which is derived from bRuss. of the dialect word буpнэйка „tokia vaistažolė; ⟦4⟧ ⟦5⟧“ ¹, unclear. Maybe a spoken word. surn. is baltism?