What does the word constrain mean?

Usage examples for constrain

  1. But as it is sinful to defer religious exercises till affliction, presenting the prospect of death, constrain to attempt them, so it is wrong to imagine, that the pressure of calamity principally should constrain to make solemn vows. – The Ordinance of Covenanting by John Cunningham
  2. Later still, unable to constrain himself any longer:-" Didn't- you- tell- me, M'riar, that Mrs. P. she told you her father lived at Darenth in Essex?" – When Ghost Meets Ghost by William Frend De Morgan