My suggestion for most of these words would be to avoid compound words, which is contrary to my normal advice! For example, something like wahroknos "tail-strike" would be okay, but doesn't fit the spirit of creating unique words since "tail-strike" is still constrained to a literal English translation. It could be some simple variation on wahrok like wahrot or wahron. That's not to say any possible words we come up with can't have a sensical English translation, but that we shouldn't limit ourselves to that frame of mind.

An idea I have for "to bring down/prevent from flying" is duviing, lit. "diswing," "unwing," or even "devour wings." Another thought is volok "un-sky," to bring down from the sky.

sahlokinbok means weak leader

Yet another sahlokinbok takes the throne

Alduins devouring of nirn  can be Vulgeinsbah or dark ones wrath

Example in a sentance ( dovahzhul)

Au fin sul do Vulgeinsbah fin lein fen tursak

Maybe the Dark ones fury vulgeinnah

you could make it vuulgeiinah to make it sound more like how a dragon would say it

An idea I have for "Kalpa" would actually be barely changing it. It sounds dragonic to begin with so I was thinking maybe "Kalfah"  or maybe "Kahfah". I would say "Kaalfah", but that would include the dovahzul word "Kaal". 

I feel like that, even if the word is changed completely, it could still hang on to some origin to the english word of "Kalpa" in the dovahzul definition somehow. Maybe the "al" part or the ending sound of the word is "ah". 

Thanks for the suggestions! I think sahlokinbok is perhaps too literal (see above comment about compound words). Vulgeinbah is a good start, perhaps like sahlokinbok a bit too literal. Perhaps something from bahlok "hunger," du "devour," or oblaan "end"?

@Mirk, in-universe, I'm not sure which language the term "kalpa" comes from. I think we can rule out a dragon origin, as Paarthurnax uses the term "kalpa" in his dialogue:

Perhaps this world is simply the Egg of the next kalpa? Lein vokiin? Would you stop the next world from being born?

If it were a loanword either from or in Dovahzul, I imagine Paarthurnax would have used the dragon version here instead of "kalpa." So I would say that either kalpa is a dragon word (I don't think it's likely), or their word for it is much different.

Just two questions: What is that Greenwich time, I mean Central time, and what does kalpa mean?

I believe that will be 21:00. "Kalpa" refers to the cycle of the world, where the world is created, and then devoured by Alduin to begin the next kalpa. Here's some further reading.

Oblaandubok means end of age

and when the time of Oblaandubok comes alduin will devour nirn

I have got a suggestion for a weak king: sahrog. It takes the first and the last *insert what it's called here* from sahlo (weak) and drog (lord).

paarthurnax

If it were a loanword either from or in Dovahzul, I imagine Paarthurnax would have used the dragon version here instead of "kalpa." So I would say that either kalpa is a dragon word (I don't think it's likely), or their word for it is much different.

I agree. I think that if there was a dovahzul word for it, then he would have used it. "Kalpa", in our world, seems to be asian in origin. From India and China it seems. 

Kalpa could just be a made up word for the game but it sounds Altmeri

Kendov sos

Kalpa could just be a made up word for the game but it sounds Altmeri

No, it is from asia. Like from Budhism and something, I saw it on the forum paarthunax showed me. But we are not here to discuss it's origin, but to make a new word in Dovahzul.

Although its origin might provide some help and ideas for the dovahzul word.

http://prntscr.com/5zdzjt All Kalpa there is and:

http://prntscr.com/5zdzwc The one we want.