日本語 Japanese Ask Questions Thread 6

If you have a question about the language, ask it and fellow 4channers might see it and answer it for you.

Japanese - Ask questions thread
http://dis.4chan.org/read/lang/1174719097/1-40

日語 Japanese Ask Questions Thread2 質問
http://dis.4chan.org/read/lang/1206158123/1-40

日本語 Japanese Ask Questions Thread 3
http://dis.4chan.org/read/lang/1267485093/1-40

日本語 Japanese Ask Questions Thread 4
http://dis.4chan.org/read/lang/1302350850/1-40

日本語 Japanese Ask Questions Thread 5
http://dis.4chan.org/read/lang/1330050873/1-40

>>198

It means "this or that", it's best to learn it as it's own word though it's definitely derived from どう and こう. どうこういわれたくない, どうこう言うつもりはない, etc.

>199

You're parsing it incorrectly. 果たす is the verb, which becomes 果たさない→果たさなければ→果たさなきゃ, chained into いけない forming 果たさなきゃいけない "must fulfill/carry out".