Russian-English translations for ослабевать

• become
  What became of him after he was let go?
  It hath becomen so that many a man had to sterve
  She became a doctor when she was 25
• decline
  The dollar has declined rapidly since 2001
  My health declined in winter
  a line that declines from straightness
• ebb
  The boats will go out on the ebb.
  The tides ebbed at noon
  The dying mans strength ebbed away
• grow weak
• weaken
• weaker