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> 親も辞書を買ってやったかいがあるってもんだよ

The context is that speaker (a child) is trying to find the meaning of a word
and asks her friend if she can borrow a dictionary. The friend ridicules her.
She brushes aside the insults, saying that "dictionary owners know complicated
things" followed by the above sentence.

My previous attempt to translate this sentence was a disaster, so I'm going to
try again. Please help me to understand my errors.

買ってやった is "bought for me"

verbかいがある is "There is value in doing verb"

I think って must be a short hand for と and I'm going to guess that there's an
implicit おもう.

ものだ is one that always confuses me. It seems to be context dependent and since
I'm struggling with the rest of the sentence I'm not in a position to figure
out which one it means.

So here's my new attempt:

> I think it would be worthwhile if my parents had bought me a dictionary too.

I don't like my placement of "too". I don't understand what も is doing
attached to 親.

Maybe:

> My parents also think it would be worthwhile if they bought me a dictionary.

is better. At least も is on the right place for that.
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2015-10-25T22:52:53.057
28872
2015-12-29T13:38:00.323
2015-11-18T16:02:36.957
888
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question
grammar translation
How to parse 親も辞書を買ってやったかいがあるってもんだ
かい is actually 甲斐 (worth) in this context, so with that in mind read it like
this:

親も辞書を買ってやった甲斐（かい）があるってもんだよ

The もんだ is a casual expression for ものだ
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2015-11-04T05:47:24.547
29009
2015-11-04T05:47:24.547
11485
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answer
**TL;DR** From the given context, I guess the gist is something like:

> Dictionary owners know complicated things. That really makes parents happy
> they bought their kid a dictionary.

* * *

The following is just my take on this, and I'm sure there are differing views,
so please take it as one of many perspectives.

## “親も”

This is a common use of `〜も`, where it is not really meant as a _specific_
“also” marker. It is used in place of `〜は` as a general topic marker, when
simply using `〜は` may seem too much like a contrast marker.

  * 花子 **は** 大きくなった ( _Hanako has grown taller._ )  
This has this risk of being interpreted as a contrast marker. It can sometimes
feel like you're implying some other person has not grown taller, while Hanako
has.

  * 花子 **も** 大きくなったね ( _Hanako, she's grown taller…_ )  
This can be confusing when you stick to the textbook explanation of the
similarity marker `〜も` (e.g. 太郎は大きくなったし花子も大きくなった). Sometimes, it's not much
more than a simple topic marker. It's often used when stating something as a
sentiment rather than a cold fact, in combination with sentence endings like
〜ねえ, 〜なあ, or 〜よ. Here the person is not drawing similarities with anything
specific, so you shouldn't bend over backwards trying to insert the notion of
an “also/too”.

Examples:

  * 親も大変だね _Tough being a parent, huh._
  * おまえも上手になったな _You've really improved, haven't you._

## “ってもんだ”

This is a colloquial form of 〜というものだ. Adding it to a phrase can have the
effect of turning a singular event into a generalized phenomenon.

For example, let's say a teacher is pleased that his pupil has passed an
entrance exam:

  * 先生「がんばって教えたかいが **あった** 」  
_Teacher: (This outcome makes me feel) It was well worth my effort teaching._

  * 先生「がんばって教えたかいが **あるというものだ** 」  
_Teacher: (These kinds of outcomes make people feel) It was well worth the
effort teaching._

Another example:

  * 少し休めば元気になるよ  
_You'll get better if you rest a little._

  * 少し休めば元気になる **ってもんだ** よ  
_(It's generally the case that) people get better when they rest a little._
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2015-11-04T14:28:37.333
29018
2015-11-04T14:28:37.333
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answer
I can offer a different parsing and translation of this phrase.

I also think that the full form of this phrase ending should definetely be
〜というものだよ. And I find the explanation for 〜も made by mirka really good. But in
my textbook there's a special explanation for 〜というものだ structure.

> **" 〜というものだ"** is used to express a wholehearted (心をこめて) opinion.
>
> Short expression for memorizing: それはずうずうしい **というものだ。** = What insolence!
>
> Example of usage: 困った時こそ手を差し伸べるのが真の友情 **というものでしょう。** (my translation: "When
> someone gives you a hand in time of trouble it is what's called true
> friendship.")

So, with this in mind let's parse the phrase

[ [ [ 親も辞書を買ってやった ] かい ] がある ] ってもんだよ.

  * 親も辞書を買ってやった = parents (in general, remember 〜も) were buying a dictionary(-ies)
  * かい = I read this as 詮 or 甲斐 (two variants for the same word) meaning "good result; use; avail"
  * 親も辞書を買ってやったかい = a use of that "親も辞書を買ってやった"
  * 親も辞書を買ってやったかいがある = there exists "親も辞書を買ってやったかい"
  * and finally applying 〜というものだ

## My final translation:

> Dictionary owners know complicated things. **After all, the fact that
> parents were buying dictionaries has gone to their advantage!**

That makes much more sense to me than mirka's translation =) After all, I see
no word in the original phrase that can correspond to 'happy'.

PS: I'm not an English native speaker, so I may be missing some nuances of
using tenses. Maybe "parents have bought dictionaries" would be better.
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2015-12-29T08:38:34.623
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2015-12-29T13:38:00.323
2020-06-17T08:18:27.500
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answer