Both are of the proper age, and such word as we have of the man we're looking for would fit either.

Eighteen is the proper age, and not a day before should it be!

Why had I wanted them to grow up and act their proper ages?

I'm consul at last, eight years beyond the proper age.

You're in the Senate at last, three years beyond the proper age.

"You have to let proper lardo age for a year."

Yours might well have taken place in a children's development center had you been of the proper age.

When he reached the proper age, his father enthroned him king.

At the proper age, their eldest son would be sent to an English school.

Currently, only one in four Americans of the proper age meet the moral, academic and physical standards for military service.