Longtime
Part of speech: adjective
Definition: Having endured for a long period of time.
Old
Part of speech: adjective
Definition: Of an object, concept, relationship, etc., having existed for a relatively long period of time.Of a living being, having lived for relatively many years.Having existed or lived for the specified time.Former, previous.Obsolete; out-of-date.TiresomeSaid of subdued colors, particularly reds, pinks and oranges, as if they had faded over time.Of an object, concept, relationship, etc., having existed for a relatively long period of time.
Example sentence: We don't stop playing because we grow old; we grow old because we stop playing.