1. σμικρός · smikros — Beekes
σμικρός is unexplained and (also) points to Pre-Greek origin. The connection with the comparative μείων, assuming that the k was taken from the opposite μακρός, fails because σμικρός is clearly older: the latter cannot be combined with μείων (which belongs to Skt. minati ‘reduce’, etc. and has no s-mobile). Old alternation of suffixes in μικ-ρό-ς : μικ-υ-θός (Bloomfield Lang. 1 (1925): 94) is improbable. — [Beekes, s.v. σμικρός, p. 1003]