G3155 · Greek — μάτην
Pronunciation: mat'-ane
adverb
folly, i.e. (adverbially) to no purpose
in vain
accusative case of a derivative of the base of G3145 (through the idea of tentative manipulation, i.e. unsuccessful search, or else of punishment)
Mátēn occurs 2 times in the King James.
Distribution of the word across the Bible: Matthew (1), Mark (1)