The first question on the lunar lore test, was, "what is a moonth." You may have guessed a spelling error, and that's not a bad guess, but unfortunately not correct. Nor is a "moonth" a moon inhabitant, or a moonrock. This is the correct answer. The "moonth" is an ancestral form of our present day month.

To our ancestors the moon must have been a comfort when its light pierced the darkness of night. From watching the changing appearance of the moon, It was obvious to early stargazers that the moon had a cycle.

The cycle would begin as an invisible "new moon," and progress after a few days to its first appearance as a slender crescent low in the west at sunset. As the days passed, the crescent would grow and the moon would set later and later, by about an hour each day. Once the moon reached full, it would begin returning back to a crescent then to disappear for a time at the new moon. The cycle would then begin over again.

More precisely, as the moon travels around the Earth, it takes the moon 29.5 days to go from new moon to mew moon. This cycle was the "moonth," that was later changed to month.