O Dicionário Universal Inglês-Russo

• It is intended for a full-text search and it significantly expands the possibilities of working with lexical items from the Russian glossary of LingvoUniversal. Contains usage examples, synonyms, and antonyms.

крепнуть

несовер. - крепнуть; совер. - окрепнуть без доп.

grow stronger; get firmly established перен.