"m_et ⇌ _ī / [-spread -lat -labdent]*[c-d-g-k-r-s-t-z][e-i-o-u]_[-spread -lat -labdent]+_" . . . "m_et ⇌ _ī / [-spread -lat -labdent]*[c-d-g-k-r-s-t-z][e-i-o-u]_[-spread -lat -labdent]+_" . .