むかし
昔
　
な
　
が
　
ら

takes genitive case の, adverb

  1. unchanged (from long ago), as it was in the past, same old, traditional.

Variations

Pronunciation Kanji Kana Is Common
むかし
昔
　
な
　
が
　
ら
 昔ながら むかしながら
むかし
昔
なが
乍
　
ら
 昔乍ら むかしながら

Contained Kanji Breakdown

once upon a time, antiquity, old times
むかし　セキ　シャク (3rd, N3)
twenty(廿) variant
day, sun, Japan
ひ　ニチ　にっ (1st, N5)