What is the meaning of the slang ～じゃてえ?


I'd like to know what ～じゃてえ exactly means when located at the end of verbs
and/or adjectives. Do young people use it rhetorically?

The whole sentence is:

> なのにのう ズイブンじゃてえ




It's not a recent slang word but a dialectal form of だって or だな. It's probably
still in use in some parts of western Japan*, but it may be best to consider
it as [a stereotyped role word of old people and people in rural
areas](https://japanese.stackexchange.com/q/23690/5010).

* Both のう and じゃ are actively used in reality in [Setouchi region](https://en.wikipedia.org/wiki/Setouchi_Region). Some source say じゃて(え) is Okayama dialect.




It's not a recent slang word but a dialectal form of だって or だな. It's probably
still in use in some parts of western Japan*, but it may be best to consider
it as [a stereotyped role word of old people and people in rural
areas](https://japanese.stackexchange.com/q/23690/5010).

* Both のう and じゃ are actively used in reality in [Setouchi region](https://en.wikipedia.org/wiki/Setouchi_Region). Some source say じゃて(え) is Okayama dialect.

