Strong's #85: ademoneo (pronounced ad-ay-mon-eh'-o)

from a derivative of adeo (to be sated to loathing); to be in distress (of mind):--be full of heaviness, be very heavy.

Thayer's Greek Lexicon:

̓́

adēmoneō

1) to be troubled, great distress or anguish, depressed

Part of Speech: verb

Relation: from a derivative of adeo (to be sated to loathing)

Usage:

This word is used 3 times:

 

Matthew 26:37: "and began to be sorrowful and very heavy."
Mark 14:33: "began to be sore amazed, and to be very heavy;"
Philippians 2:26: "he longed after you all, and was full of heaviness, because that ye had heard that"