Proto-Baltic: *usn-i- c., *usn-ā̂ f., usn-iā̃ f., *ūsn-iā̃ f., *usn-jā̂ f.
Meaning: a k. of thorny plant
Lithuanian: usnì-s, ùsni-s 'Distel', usnē̃ 'ds.'
Lettish: usna, usne, ušn̨a, ūsna 'Acker-, Saudistel (Cirsium arvense L.), krause Distel (Carduus crispus L.)'