This one is called "Haskorian". When consonants are pronounced on their own, they end with an É sound. However, Ð, F, L - Ŋ, and R - Š start with an É sound instead of ending with it, and Ğ, H, J - K, Q, W, X, and Þ end with an Ә́ sound.
C2A If you want to make this a lore, then here are the words: FRIENDS equivalents: FRIENDS = FRINÉCAŠ BUDDIES = BӘ́DENŠI COMPANIONS = KӘ́MPAGNI COLLEAGUES = KOLÉGAŠ BROTHERHOOD = BRUTÉHÍD FRATERNITY = FRÄTERNITӘ́ HAPPINESS = HÉLÍCJADRU JOYFULNESS = J̌ÄDOSTNE CAB equivalents: CAB = KÄBENƏ CAR = KÁRE BUS = ÁUTOBƏS MAP equivalents: MAP = MÄPӘ́ COMPASS = KӘ́MPÄŠ TRACKER = TRÄCIOR GUN equivalents: GUN = PIŠTÖLE RIFLE = RÄVÁJE SWORD = ČÚRD KNIFE = NӘ́Š AXE = ÄKSOR BURN = BÚRNEN EXPLODE = ÉKSPLÖD COWARD equivalents: COWARD = KƏWÖRTÉ WEAKLING = SVEKLIŊ USELESS = WÜUŠLÖS WORTHLESS = VARDELÖS VAN equivalents: VAN = VƏN TRUCK = KÄMEJÓN TRACTOR = TRÄKDÓN Other words: fart = fuštre frick = frík