One more request re Swahili translation?

Question

First of all, thanks to Circleoftopaz and Godislove for your input regarding my earlier question....

Actually the whole message in Swahili is;

"Nakupenda sana,
Jua langaa nikikuwaza,
na Mwezi huwa mwangavu pia,
usiku mwema mpenzi."

Any advice on the translation of the above? Many, many thanks for your help!!!!!

Answer 1

Nakupenda sana= I love you very much.
jua = sun, sunshine
lang'aa from ng'aa = shines
kuwaza= to think
mwezi = moon
mwangavu= a clever person(?). I think here
it is a full moon.
pia = also
usiku mwema mpenzi= good night, my love.
So, except for the one doubtful word, it says
I love you very much
I think of you when the sun shines
and also when the moon is full.
Good night, my love.

Answer 2

"Nakupenda sana,
Jua langaa nikikuwaza,

means

I love you alot
I think about you and the moon <--Iam unsure what the word langaa means, so I'm missing an important word I believe.