The -Uman Suffix — Earliest Written IE Evidence

“How -Uman is used to distinguish the first words ever written in any Indo-European language. The Tarmana tablet. Kloekhorst’s work confirms M-N- as the key distinguishing element in Kanisite Hittite writing from 1,900 BCE: “the earliest written evidence of an Indo-European language and M-N- is the main distinguishing element.””

Source: The M-N- Sound · FM Draft, Episode XXXVI