This lesson is covered in more detail in Week 1 of Introduction to Sindarin
Being able to say where you come from is an important part of a first conversation with a stranger. Because Amdiron and Ivrinel are still relative strangers they are still using formal speech with one another in this text.
Amdiron: Suilad! Mas dorthol Ivrinel? Ivrinel: Dorthon vi Lothlorien, ach onnen hí vi Imladris. A len? Amdiron: Telin od Imladris. Ivrinel: O vas tôl? Amdiron: Siron? Mellonenin tôl o Daur-nu-Fuin
Amdiron: Greetings! Where do you live Ivrinel? Ivrinel: I live in Lothlorien, but I was born here in Rivendell. And you? Amdiron: I come from Rivendell. Ivrinel: Where does he come from? Amdiron: Siron? My friend comes from Mirkwood.
Vocabulary Suilad! = Greetings! Mas dorthol? = Where do you live? Dorthon vi... = I live in... ach = but onnen hí = I was born here A len? = And you? Telin o(d)... = I come from. The second word is O before a consonant, and Od before a vowel O vas tôl? = Where does he come from?
To say 'we live in', use = Dortham vi (and a place). Take a note of the different ending, but verbs are a much later lesson. For now you should just notice the difference between Dorthon, Dorthol and Dortham.