語言

語 yǚ MC njwo (上聲) LH ŋɨɑ (上聲) OCM *ŋaʔ

'Speak'

語 yǜ MC njwo (去聲) LH ŋɨɑ (去聲) OCM *ŋah

'To tell'

言 yán MC njɐn (平聲) LH ŋiɑn (平聲) OCM *ŋan

'To speak, speech, talk'

Who would have known they once differed only in the final consonant?

(Information from the ABC Etymological Dictionary of Old Chinese)