thio-

Etymology
From.

Prefix

 * 1)  containing sulfur, especially a compound in which oxygen has been replaced by this element
 * 2) * 2013, Henri A. Favre and Warren H. Powell, eds., Nomenclature of Organic Chemistry, 765:
 * Chalcogen analogues of monocarboxylic acids with retained names may also be named by placing the prefix ‘thio’, ‘seleno’, or ‘telluro’ in front of the name of the acid.

Etymology
From.

Etymology
From.

Prefix

 * 1) thio-