Elderly
Part of speech: adjective
Definition: old; having lived for relatively many years
Example sentence: A lasting marriage, they say, is one where the two reach for different sections of the Sunday paper. Me, I go right for the obituaries, just like those very elderly characters in Muriel Spark's spooky novel, 'Memento Mori.'
Aged
Part of speech: adjective
Definition: Old.Undergone the effects of time, improving as a result.
Part of speech: verb
Definition: To cause to grow old; to impart the characteristics of age to.
Part of speech: preposition
Definition: Having the age of.
Example sentence: Confidence is a plant of slow growth in an aged heart.