dorlurfau lujvo

x1 is a 'day-moon' event, a time when the moon is visible in daylight.

A translation of the Turkish word günay (literally 'day-moon'), a common surname. From donri+lunra+fasnu.

In notes:

dorlunra
x1 is a moon of planet x2, visible from location x3 on that planet, where it is daytime.