nounprōportĭōnālĭtasPROPORTIONALITAS☆ KeepMeaningproportionLewis & Short 1879ModernAs printed, 1879PROPORTIONALITASLEWIS & SHORTPROPORTIONALITASprōportĭōnālĭtas, ātis, f. proportionalis, I. proportion, Boëth. 2 Arithm. 40.Read the whole entryIn English words that came into English from prōportĭōnālĭtasproportionalityprōportĭōnālĭtas