Where does “preampullary” come from?

preampullary (English) comes from English ampulla, from Latin ampulla, from Latin amphora, from Ancient Greek ἀμφορεύς, from Ancient Greek ἀμφιφορεύς, from Ancient Greek φορεύς, from Ancient Greek φορέω, from Ancient Greek φέρω — shiny, light brown.

preampullary (English): Before an ampulla, as for example upstream of the ampulla of Vater in the lumen of the duodenum; structures and events that are preampullary thus exist in the foregut rather than in the midgut