'uncommented' originates from English, formed with the prefix 'un-' (from Old English 'un-', meaning 'not') and the verb 'comment', where 'comment' ultimately comes from Latin 'commentum'.

'comment' changed from Latin 'commentum' and Medieval/Old French forms (e.g. Old French 'coment') into Middle English 'comment'; the negative prefix 'un-' was then attached in English to create 'uncomment', and finally the past participle form 'uncommented' was formed.

Initially, 'comment' (from Latin) referred to a thought, consideration, or a note; over time it became a verb meaning 'to add a remark' and, in modern technical contexts, 'uncomment' acquired the specialized sense 'to remove comment markers' while 'uncommented' came to mean 'not commented' or 'having had comments removed'.