was trying to think up a succinct way later-Age Elves might say “those who lived in Beleriand for the whole First Age (or until they died)”, hit on “Beleriandrim”, now having a lot of emotions about the “people of Beleriand” (including Ossiriand). How they’re distinct from those who merely came to fight in the War of Wrath.
How an explicit function of Valinor is that healing from great traumas can be found there, that everyone might fully come home from the long, dark war - but even if they returned easily to the Shire in a way Frodo couldn’t, Merry and Pippin were still changed from their adventures and trials, they still stood taller, laughed louder, and rode at times with swords at their sides; and I can’t imagine Elves are any different. The Beleriandrim, those who fought the long defeat! There are things the people of far northern Hithlum and far souther Ossiriand have in common which the boldest warrior in the Vanyarin host could never understand, no matter how many orcs and balrogs they personally faced. There are memories shared between bright-eyed kinslayers of Hithlum, grey-cloaked gardeners of Doriath, and rigging-running sailors of the Falas, and bristle-bearded dwarves of Ered Luin and stubbornly independent Men of Brethil, though none of either mortals are left alive today.
Beleriand! Avari, Returned and finally-sailed, sing of it around their campfires in the distant corners of Valinor’s many forests, and Finrod still-called-Felagund sings of it in his father’s high court in Tirion. They were Doomed and forsaken there (except by Ulmo; always shoutout to our bro Ulmo), but what a wild glory there was in that abandonment! What glorious wildness! They cannot know, those who were only there for 40-odd years of war - not like even those who were born late and so only knew that last war. Only by living in Beleriand, with no hope nor thought of anywhere else - only by tasting every day the faintest acidity of rot in the air, a flavoring like spice in every meal which simply isn’t found in eternal Valinor, and knowing everything more precious for it. Only by turning your face to the cold northern winds that blew dark thoughts into your soul, and laughing. Only by having been there for the heady, in retrospect absurd confidence of the Long Peace - “Save by treason among us, Morgoth could never again burst from the leaguer of the Eldar,” Fingolfin is said to have boasted, and he was wrong, he was so terribly wrong - but it is worth remembering that the treachery and further kinslaying didn’t start until after all were pushed to much greater extremis. They weren’t as strong as they thought they were, but they were united, the staunch Siege-ling of the three houses of Finwë’s royal sons - and the Northern Sindar with them, and the newly found and befriended Edain, the Dwarvish trading partners, the Laegrim who shared their tricks for slipping unseen through the land and Círdan’s Falathrim who eventually got the chance to return the favor of sailing to the rescue, and provided refuge unto the end…even a couple Marchwardens of Doriath fought in the Nirnaeth Arnoediad!