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предавать забвению stresses
gen.	consign to the grave; relegate; sink; bury in oblivion (Anglophile); relegate to oblivion (Азери); let pass into oblivion (Stas-Soleil); cast into oblivion (Stas-Soleil)
busin.	condone
Makarov.	commit to oblivion
notar.	consign to oblivion
relig.	efface
uncom.	oblivionize (lexicographer)
предаваться забвению
gen.	fade into obscurity (Andrey Truhachev); fall into desuetude (Andrey Truhachev); pass into oblivion (Andrey Truhachev); sink into oblivion (Andrey Truhachev); sink into obscurity (Andrey Truhachev); vanish into oblivion (Andrey Truhachev); be forgotten (Andrey Truhachev); be buried in oblivion (Andrey Truhachev); pass into silence (poetic Andrey Truhachev); pass out of mind (Andrey Truhachev)
idiom.	fall into oblivion (Andrey Truhachev)
предавая забвению
obs.	obliviously

предавать забвению: 4 phrases in 2 subjects

Idiomatic	1
Makarov	3