Request: Sindarin translation

Greetings, dear scholars! I've come to make a request to you regarding Sindarin. First, I'll provide some context so you can better understand the origin of my request: I am a DM for LotR RPG (based on 5e), in a slightly customized setting, and for a new adventure I'm writing, I created a village built around a large olive tree. This village is predominantly elven and speaks Sindarin. Now, for my humble request: I would like to name the village Olive Tree (in Sindarin), given that the tree is its heart. I saw a neologism for olive tree in Quenya in the dictionary: Milpialda, which I found wonderful, but I would like an equivalent in Sindarin. Is there sufficient basis for a neologism to be made in Sindarin? Thank you for paying attention to the request of this humble dungeon master.

Thank you very much!

This is rather questionable, but I suppose I could suggest Galadh Blidhod for "Olive Tree", with blidhod as a counterpart of milpio, combining Gnomish "oil" + "berry". I wouldn't go for a full compound here, too cumbersome.

Thank you very much for the detailed explanation, the result was very good, it looks clean and majestic, this will be the name of my city, thank you!

I knew I should have come straight here to talk to the experts :) My first attempt was with Gemini, which generated two names that I felt deep down had something wrong with them... one of them was Laebiorn and the other Laebialadh.

I believe that Orn doesn't apply to an olive tree, so Galadh made sense to me, even so I found the construction with this "Laebi" strange.

And again, Galadh Blidhod seems fantastic to me, thank you once more.

Laebi seems nonsensical to me. In general, AI fares very poorly with Elvish.