quinquagenarian /kwin-kwə-ji-nāˈri-ən/

A person who is fifty years old, or between fifty and sixty (also adjective)

quinquagenary /-jēˈnə-ri/ adjective (rare)

1. Of, containing, based on, fifty
2. Quinquagenarian (also noun)

• go dry
• gods
• God's acre
• God's ape
• God save
• God's country
• godsend
• godsends
• God's foot
• God's gift
• God's heart
• godship
• godships
• God's honest truth
• God's life
• God slot
• god-smith
• god-smiths
• God's nails
• godso
• godson
• godsons
• God's own country
• godspeed
• godspeeds