dékatos

He saith unto them, Come, and ye shall see. They came therefore and saw where he abode; and they abode with him that day: it was about the tenth hour.

The first tagged occurrence in John.

to whom also Abraham divided a tenth part of all (being first, by interpretation, King of righteousness, and then also King of Salem, which is, King of peace;

The first tagged occurrence in Hebrews.

And in that hour there was a great earthquake, and the tenth part of the city fell; and there were killed in the earthquake seven thousand persons: and the rest were affrighted, and gave glory to the God of heaven.

The first tagged occurrence in Revelation.