old person; old-fashioned person
Refers to an elderly person or someone with outdated ways. The 'old-fashioned' sense is often used critically or humorously.
That old person always tells us old stories.
He is old-fashioned in his thinking.
Compound of 昔 (mukashi, 'old times') and 者 (mono, 'person'). The exact historical derivation is uncertain, but the word literally means 'person of the past'.