nineteen

Etymology

From Middle English nynetene, nintene, from Old English niġontīene, niġontēne, from Proto-Germanic *newuntehun. Cognate with Dutch negentien, Low German negenteihn, Hunsrik neinzen, German neunzehn, Danish nitten. Equivalent to nine + -teen

num

1. The cardinal number occurring after eighteen and before twenty, represented in Roman numerals as XIX and in Arabic numerals as 19. It is the last/largest of the "teens".
   She says groovy like it's nineteen sixty-nine. 1997, Swan Dive (lyrics and music), “Groovy Tuesday” (track 1), in Wintergreen, performed by Swan Dive