Is there any spanish words that begin with the letter "Rr" and the accent letter for "N"?

Answer 1

the used or the double r at the beginning of a word was used when spanish became spanish (around the XII century). Here's an example taken from Mio Cid:

Oy los rreyes d'España sos parientes son,
a todos alcança ondra por el que en buen era naçió.
Passado es deste sieglo el día de cinquaesma;
[...] ¡de Christus aya perdón!
¡***í fagamos nós todos iustos e peccadores!
Éstas son las nuevas de Mio Çid el Campeador,
en este logar se acaba esta rrazón.

"Ya señor ondrado, rrebata nos dio el león".
Mio Çid fincó el cobdo, en pie se levantó,
el manto trae al cuello e adeliñó pora 'l león.
El león, quando lo vio, ***í envergonçó,
ante Mio Çid la cabeça premió e el rrostro fincó.

Now a days there's no need to duplicate the "r" to make it sound strong, when a word in spanish begins with "r", it's always strong. It's also strong when its at the beginning (or the end) of a syllable or at the end of a word. It's used the double r "rr" to make the sound strong when between 2 vowels.
Some examples:
carro = car (strong) caro = expensive (soft)
rosa = rose (strong) peligrosa = dangerous (soft)
cantar = to sing (strong)
lla-mar-nos = to call us (strong)
En-ri-que = it's a name (strong)

There aren't many words that begins with ñ but some of them are:
ñaña = babbysitter (in Chile)
ñoño = nerd (Mexico)
ñapa = tip
ñor or ñora (contraction from señor señora) = Mr. Mrs.
ñu = an animal, don't know the name in english

Answer 2

The combination "Rr" in a word makes the letter "r" sound stronger, however theres no need to begin a word with two "R's", just one, and that R will always sound strong. For example:
Raton - mouse, carro - car ... the R in the two words sounds strong. You can't write Rraton.

Now, with the letter "ñ" altough is very rare to find a word with this letter, there are a few words that begin with it, for example
ñandú - ostrich (its not an ostrich exactly but looks like one).

I hope you find my answer helpful.

Answer 3

All Spanish words that start with "r" have the trilled "rr" sound at the beginning.

I'm not sure what your second question means. Are you asking for words that start with "ñ"? I can't think of any off the top of my head, but I think they exist.

Answer 4

no, the reason why in spanish the "rr" is used is to heavily roll those r's, but if a word begins with an r, it is pronounced with a heavy roll already.

Answer 5

no