Flei/Proto

Consonants: (s)m (s)n (s)l (s)r p t k b d g s

Vowels and tone: i ī(ˀ) ē(ˀ) a ā(ˀ) ō(ˀ) u ū(ˀ) ai(ˀ) ei(ˀ) oi(ˀ) au(ˀ) eu(ˀ) ou(ˀ) aR(ˀ) iR(ˀ) uR(ˀ) (R = m/n/l/r)

(i.e. long vowels may or may not have the Balto-Slavic acute)