ultra-, prefix. ultra- comes from Latin, where it has the meaning "located beyond, on the far side of:''ultraviolet. ultra- is also used to mean "carrying to the furthest degree possible, on the fringe of:''ultraleft; ultramodern. ultra- is also used to mean "extremely:'' ultralight.
10-letter words that start with ultraultrasound.ultrasonic.ultramafic.ultralight.ultrashort.ultrabasic.ultrafiche.ultradense.
going beyond what is usual or ordinary; excessive; extreme.
The phrase served as a warning: "(Let there) not (be) more (sailing) beyond." The New Latin version ne plus ultra, meaning "(go) no more beyond," found its way into English in the early 1600s.