The story
Transliteration of Ukrainian геро́ям сла́ва (herójam sláva, “glory to the heroes”). Salute originating in the interwar period. A response to the initiating interjection slava Ukraini.
Etymology from Wiktionary, CC BY-SA 4.0.
heroiam slava
Today it means: A farewell, a sign-off indicating support to Ukraine, now in reference to the Russian invasion of 2022, used as a response to slava Ukraini. Full definition →