hand-written (adj.)youdaoicibaDictYouDict[hand-written 词源字典]
also handwritten, 1745, from hand (n.) + written. As a verb, hand-write is recorded from 1878, probably a back-formation. [hand-written etymology, hand-written origin, 英语词源]
unwritten (adj.)youdaoicibaDictYouDict
mid-14c., from un- (1) "not" + past participle of write (v.). Similar formation in Old English unwriten, Old Norse uritinn.