Fainthearted - Vine's Expository Dictionary of New Testament Words
Fainthearted
[ 1,,G3642, oligopsuchos ]lit., small-souled" (oligos, "small," psuche, "the soul"), denotes "despondent;" then, "fainthearted," 1 Thessalonians 5:14, RV, for the incorrect AV, "feeble-minded." In the Sept., similarly, in a good sense, Isaiah 57:15, "who giveth endurance to the fainthearted," for RV, "to revive the spirit of the humble;" in a bad sense, Proverbs 18:14, "who can endure a fainthearted man?"