Na ji daɗin yadda ta amsa imel ɗin nan da sauri ta ce hoton ya yi kyau.

I liked how she answered this email quickly and said the picture looks good.

Breakdown of Na ji daɗin yadda ta amsa imel ɗin nan da sauri ta ce hoton ya yi kyau.

• nan: here
• amsa: to answer
• ji: to feel
• daɗi: happy

Questions & Answers about Na ji daɗin yadda ta amsa imel ɗin nan da sauri ta ce hoton ya yi kyau.

In Na ji daɗin yadda…, what does this phrase literally mean, and how does it end up meaning “I liked how / I enjoyed how”?

Literally:

• Na = I (1st person singular, perfective)
• ji = heard / felt
• daɗi = pleasure, enjoyment
• daɗin yadda… = the pleasure of how… / the way in which… was pleasing

So Na ji daɗin yadda ta amsa… is literally:

“I felt the pleasure of the way she answered…”

Idiomatically this is just how Hausa says “I liked how / I enjoyed the way (she answered…)”.
The verb ji is very broad: “hear, feel, experience,” so ji daɗi = “feel pleasure” → “be pleased, be happy, like (something).”

What exactly is yadda doing in this sentence?

yadda means “how / the way that” and introduces a clause describing manner:

• yadda ta amsa imel ɗin nan da sauri
  = “how she replied to this email quickly / the way she quickly replied to this email”

So the structure is:

• Na ji daɗin (I liked / I enjoyed)
• yadda… (the way that…)
  • ta amsa imel ɗin nan da sauri (she replied to this email quickly)

You can think of yadda here like English “how” or “the way that” in:

I liked how she answered.
I enjoyed the way that she answered.

Why is it daɗin yadda and not just daɗi yadda? What is the -n on daɗin?