Related Clues:

• Caseharden
• Prepare for the worst
• Grow accustomed (to)
• Harden (Var.)
• Make used (to)
• Get used to
• Make accustomed (Var.)
• A way to habituate
• Toughen or harden (Var.)
• Get used (to) (Var.)
• Harden (to) (Var.)
• Toughen or harden
• Indurate
• Make tough (Var.)
• Acclimatize (Var.)