Of these two groups of Elves, most of the Noldor returned to Middle-earth where they met the Sindarin-speaking Grey-elves. The Noldor eventually adopted Sindarin and used Quenya primarily as a ritual or poetic language, whereas the Vanyar who stayed behind in Eldamar retained the use of Quenya.
As an elf of Mirkwood, Legolas speaks Silvan, or least knows some words and phrases. Finally, he definitely speaks Sindarin, which is the most common elvish language at the time of the quest to destroy the One Ring.
("A star shines on the hour of our meeting.") Galadriel is perhaps the only major Elf character in The Lord of the Rings that had learned Quenya as a cradle-tongue: she was born in Valinor in the days of the Two Trees.
Her name "Ar-wen" means 'noble maiden' in Sindarin. She was given the name "Evenstar" as the most beautiful of the last generation of High Elves in Middle-earth. Arwen said: "Dark is the Shadow, and yet my heart rejoices; for you, Estel, shall be among the great whose valour will destroy it."
Which one should learn first? This question can't be answered directly: it largely depends on what languages you're already familiar with. I believe that Quenya is appropriate for the starter because it gives better understanding of the Primitive language, and then he can find Sindarin easier.
Over the years, Gandalf became his most common name, given to him by the humans of Arnor. However, Mithrandir was another popular name for Gandalf in The Lord of the Rings. This was Gandalf's Sindarin name, used by the Elves and later the citizens of Gondor.
There are actually two forms of Elvish commonly learned by fans: Quenya, or high Elvish, and Sindarin, both based loosely on Finnish and Welsh, two languages Tolkien himself studied. And these can be subdivided into different dialects.
An elf knows Elvish because fundamentally, they are fey, and being fey means knowing Elvish. The language evolves as it is needed, and all fey creatures know the language.
He was either a Sylvan, who ignored the call to go to Valinor, or a Sindarin elf, who were less noble and wise and had decided not to go to Valinor. There is no record of any relationship between the the houses of Thranduil and Galadriel.
Thranduil would be older than Elrond. When Doriath was destroyed and the child Elwing (Elrond's mother) was brought to the Havens of Sirion where he met Earendil and eventually wed when they got older, and had then conceived Elrond and Elros.
He runs into Legolas, who confesses that he could not go back with him. Thranduil advises him to find the Dúnedain, for there was a young Ranger there whom he should meet - his father, Arathorn, was a good man, and he might become a great man himself.
Legolas is a Sindarin Elf from the Woodland Realm of Northern Mirkwood. His father, Thranduil, is the King of the Silvan Elves living in that realm, making Legolas the Prince of Mirkwood.
The languages were the first thing Tolkien created for his mythos, starting with what he originally called "Qenya", the first primitive form of Elvish. This was later called Quenya (High-elven) and is one of the two most complete of Tolkien's languages (the other being Sindarin, or Grey-elven).
Most of it is Sindarin, because it's the elvish lingua franca in western Middle-earth (and also spoken in parts of Gondor); you'll notice the rare Quenya (like in Galadriel's Namarie song) because of how different it looks and sounds.
Narya (the Ring of Fire, the Red Ring), from Quenya nár, "fire", was set with a ruby. Its metal is not stated. It gave its wielder resistance to the weariness of time, and evoked hope and courage in others. Its final bearer was the Wizard Gandalf, who received it from Círdan at the Grey Havens during the Third Age.
It perhaps isn't "neccessary", but Aragorn lived in Rivendell from when he was 2 to around 20, so he would have grown up being taught both languages equally (his mother teaching him the common tongue, the elves teaching him Sindarin).
When meeting with Thranduil, Thorin says, “Imrid amrâd ursul” – “Die a fiery death.” When Thorin then recounts the meeting to Balin from his prison cell, he states that he told Thranduil “to 'Ishkh khakfe andu null'” – “pour my excrement on his head.” Another dwarvish insult came from Gimli in The Fellowship of the ...
We don't get any scenes of Thranduil meeting Aragorn, but one is implied. They probably met since Aragorn took the newly captured Gollum to Thranduil's kingdom.
Thranduil was a Sinda, or Grey-elf. The Sindar were members of the Third Kindred of Elves who followed Elwe (Thingol) and Olwe into Beleriand, and their later descendants.
