– neztratitelnost, trvalost, věčnost:

http://lila-erc.eu/data/lexicalResources/LexiconBohemorum/id/LexicalSense/45166_GF_ an entity of type: LexicalSense

– neztratitelnost, trvalost, věčnost: 
condicio rei, quae amitti non potest, perpetuitas, aeternitas 
– neztratitelnost, trvalost, věčnost: 
condicio rei, quae amitti non potest, perpetuitas, aeternitas 

data from the linked data cloud