breytni
nafnorðkvenkyn
f. change; göra b. á um e-t, to make an alteration in a thing, Fas. iii. 155, Mag. 5, Fs. 98; b. í klæðnaði, fashion, N. G. L. iii. 262: new fashion, Grág. i. 338; ný-breytni, Snót 68; hann kvaðst eigi nenna enn um sinn at hafa þessa b., he said that he was not yet minded to, viz. to be baptized, Fs. 77, Nj. 13 (shape, nature).
2. in mod. usage chiefly moral conduct, acting; eptir-breytni, imitation.