Sojaz

Sojaz (so- + jaz(ik) = "co" + "lang(uage)" in Slavic languages) is one of the early attempts to create a pan-Slavic language.

a, b, c, ch, d, e, f, g, h, i, j, k, l, m, n, o, p, r, s, sh, t, u, v, y, z, zh