(やまやま)

やまやま
noun, adverb
mountains; greatly
1. mountains, many mountains
Multiple mountains; a range of mountains.
(うつく)しい山々(やまやま)
Beautiful mountains.
You can see mountains in the distance.
山々(やまやま)(かこ)まれた(むら)
A village surrounded by mountains.
In autumn, the mountains turn red and yellow.
Snow-capped mountains were visible from the window, and it was very beautiful.
2. greatly, very much (wanting to)
Used to express strong desire, often followed by 'but...' to indicate constraint.
I'd very much like to help.
I'd love to go, but I don't have time.
I'd love to buy it, but I don't have the money.
I'd very much like to take it on, but I'm busy right now.
I'd love to rest more, but I have to finish by next week.

山々(やまやま) has two distinct meanings formed by reduplication of (やま).

MEANING 1 - MOUNTAINS:

Literal plural/collective meaning "mountains" or "many mountains."

MEANING 2 - VERY MUCH:

Adverbial expression meaning "very much wanting to" but implies a constraint.

USAGE NOTE:
The adverbial sense always implies that despite strong desire, something prevents the action. It's often used politely to decline or explain why something can't be done.

PATTERN:
〜たい山々(やまやま)だが/です + reason for not doing