sergö : silver
The Tarijan word for silver is sergö.
Sergo is a uncommon last name. Sergo is a uncommon masculine first name that can be Georgian.
How I came up with this word:
Sergö is a mixture of the transliterated word for silver in Russian which is serebro (серебрo), and the transliterated word for silver in Mongolian which is möngö (мөнгө).