We found one dictionary that defines the word up in years:

Miscellaneous (1 matching dictionary)

1. up in years: Idioms

Phrases: getting up in years, more... ▸ Words similar to up in years ▸ Usage examples for up in years ▸ Idioms related to up in years ▸ Wikipedia articles (New!) ▸ Words that often appear near up in years ▸ Rhymes of up in years ▸ Invented words related to up in years