From French grognard (“old soldier”)
grognard (plural grognards)
- An old soldier.
- an old veteran soldier; specifically of the grenadiers of the Imperial Guard (Grenadiers à Pied de la Garde Impériale); an old complaining soldier
- (games, slang) Someone who enjoys playing board wargames.
- (computer games, slang) Inside the computer game development industry, a game fan who will buy every game released in a certain genre of computer game (RTS, or computer role-playing game, etc.)