deb ther
annal, chronicle, records, documents, records, catalogues, registers, lists, books [RY]
annals, chronicle, records, documents, records, catalogues, registers, lists, books [IW]
register, documents, catalogues, anything recorded in writing or stitched together [JV]
historical book, annals [RY]
1) annals, historical annals, recorded annals, chronicles, historical chronicles, recorded chronicles, records, historical records; 2) record books, documents, historical documents, catalogs, historical catalogs, catalog of records, registers, historical registers, recorded registers, listings, historical listings, recorded listings; 3) books, scrolls. Borrowed from Persian دفتر (daftar), meaning "register", "account book" or "notebook", ultimately from Ancient Greek διφθέρᾱ (diphthérā, “parchment”, "scrolls" or "pages"). There is also an irregular spelling with གཏེར (deb gter) based on a Tibetan 'folk etymology' connecting it to the meaning "treasure", due to the accidental similarity of the Persian-Greek -tar/-thérā with the Tibetan word. Thus it appears that this Greco-Persian etymology is also the ultimate origin of deb, the main Tibetan word for "book", as the monosyllabic deb is derived from the longer word deb ther. [Erick Tsiknopoulos]