Etymology of the Latin word librarius
the Latin word
librarius (bookseller; copyist, secretary; bookseller; of books)
derived from the Latin word
liber (book, volume; inner bark of a tree; children; child; free; unimpeded; void of; unconstrained, unrestrained, unencumbered)
derived from the Proto-Indo-European root
*leudh-Derivations in Latin
librarium,
librariaDerivations in other languages
English
librarian, French
libraire, Italian
libraio, Italian
librario, Spanish
librero