It always gets me that the name "Gandalf" literally just means "Wand-Elf" or "Stick-Elf". I'm imagining old Gondorians just being like:
Librarian: I saw that weird guy at the library again today.
Librarian: The old guy with the beard? Kinda elfy-looking, apart from the beard?
Guard 1: Oh, with the big-ass stick?
Librarian: Yeah, looked like he was carrying an entire tree branch.
Guard 2: Yeah, that's the Stick Elf.
Guard 1: Hell yeah, I fuckin' love the Stick Elf.
Librarian: The "Stick Elf"?
Guard 2: He comes by every few years, usually after some weird book or other.
Librarian: Oh. Yeah, he wanted a treatise on goblin breeding habits.
Guard 2: Like, how they have sex? We have books on that?
Librarian: Yeah, turns out we do. I was as surprised as you are.
Guard 1: What'd the Stick Elf need a fuckin' goblin-fuckin' book for?
Librarian: I didn't ask. So you just call him "Stick Elf"?
Guard 2: I mean, he looks kinda elfy and he always has that stick, so, like, yeah.
Guard 1: Dude also has some fuckin' dope pipeweed.
Guard 2: Oh yeah, his pipeweed is awesome.
Librarian: How long has he been coming here?
Guard 2: Oh, for decades. He's, like, super old.
Guard 1: More like fuckin' centuries. Dude's old as balls.
Guard 1: Yeah, my gran-gran used to talk about him. She loved his pipeweed too.
Librarian: So he's… an immortal pipeweed dealer?
Guard 2: I think he's just, like, a connoisseur. He doesn't sell it or anything. He just always has some really top-notch pipeweed on him.
Archivist: Oh, are we talking about Stick Elf?
Guard 1: Hell yeah we are!
Librarian: You know about the Stick Elf, too?
Archivist: Oh, totally. Stick-Elf's a super chill dude. Gave me some awesome pipeweed when I was maybe 12, and tee-bee-aitch I think I'm still a little buzzed from it.
Guard 1: What'd I tell ya, fuckin' dope pipeweed!
Archivist: Also he's really old.
Librarian: Yeah, so Éodan and Jenniforomir were telling me.
Archivist: My grandpa used to tell me stories - he said one time he saw Stick Elf enter a smoke-ring contest.
Guard 1: Ooh, I'll bet he kicked fuckin' ass.
Archivist: Apparently the guy made an entire warship out of smoke and it flew around shooting down the other rings.
Librarian: And how much of this "fuckin' dope" pipeweed had your grandfather had by this point?
Guard 1: No no, that's totally plausible. Dude's got weird elf powers and shit for sure.
Archivist: He brought fireworks for the king's birthday one year, too.
Guard 1: Oh fuck, I forgot about those! Fuckin' incredible fireworks! Dragons and knights and glowy trees and shit! I was fuckin' 6 years old or something, they totally blew my mind. Hey Éodan, did you see that shit?
Guard 2: No, I think that's before I lived in Gondor.
Guard 1: Wait, you're not from here?
Guard 2: Oh, no, I grew up in Rohan. We moved here when I was, like, thirteen because my uncle Éojeff said he could get my dad a sweet job. And also that there were houses that didn't smell like horseshit.
Guard 1: Oh shit, are you related to Éojeff and Éosteve who run that æbleskiver stand on Norndîl St?
Guard 2: Yeah, they're my uncles!
Guard 1: Shit, they cook a fuckin' great æbleskiver!
Librarian: Ok, hold up a sec, "Stick Elf" can't possibly be his real name.
Librarian: What? You think his parents named him in the hopes that he would carry around a fucking tree when he got older?
Guard 2: Maybe they gave him the tree when he was born!
Archivist: I don't think a baby could carry that stick.
Guard 1: You ever seen a baby hanging onto something? They're hella strong.
Archivist: It's not a strength thing, their hands are tiny. That staff is enormous!
Guard 1: My halberd's bigger 'n I am, I can hold it just fine.
Archivist: You're not a baby.
Librarian: Also why would elf parents name their kid "stick ELF"?! Presumably they know that their kid's going to be an elf!
Archivist: Is he actually an elf? I didn't think they grew beards.
Guard 1: How'd he get old as balls if he's not an elf?
Guard 2: His ears aren't that pointy. Maybe he's just a really old guy? Like, a Numémoriam or something?
Guard 1: Did you just say "Numémoriam"?
Guard 2: Nûnenorman? Munimõrbitan? Y'know, those guys like the king that can get super old.
Guard 1: You mean the fuckin' Númenóreans?
Guard 2: Yeah, the Númenóreums.
Archivist: Even the Númenóreans don't live THAT long.
Guard 1: Plus he carries that fuckin' stick around.
Guard 2: Wait, what does the stick have to do with it?
Guard 1: That's an elf thing. Y'know, trees and shit? Very elfy.
Librarian: Ok, look, but his parents naming him "Stick Elf" would be weird whether or not he's an elf. In fact, it's even weirder if he's not - what human names their kid "elf"?
Archivist: Huh. Yeah, you're right, he probably does have another name.
Guard 2: Yeah, I guess so.
Librarian: He's been coming here for decades and nobody's ever asked his real name?
Archivist: I dunno what to tell you, he's Stick Elf. Even his library card just says 'Stick Elf'.
Guard 1: Fuck yeah, the Stick Elf!
Guard 2: Maybe we could, like, ask him his name sometime?
Guard 1: Hey, look, Elrond's over there. He's old as balls too, maybe he knows?
Guard 2: Oh, we shouldn't interru-
Guard 1: HEY ELROND, YOU'RE OLD AS BALLS, RIGHT? WHAT'S THAT OLD ELF WITH THE STICK'S NAME?
Elrond (coming over): Do you mean an old man cloaked all in grey and blue, leaning on a rough-cut staff, who came to the great library this day?
Guard 1: Yeah, the Stick-Elf!
Guard 2: (Sorry to bother you, sir...)
Librarian: He's got to have a real name besides 'the Stick Elf', right?
Elrond: Indeed, for no elf is he. You speak of the wizard Olórin, wisest of the Maiar, older even than Eä itself. Many are his names in many countries: Tharkûn among the Dwarves; Incánus to the south; Mithrandir he is called among my people, the Grey Pilgrim.
Elrond: And here in the North he is called Stick-Elf.
