+ archer, arrow, dart, shaft, staff, wound

Boyd’s Bible Dictionary:

[ARMS.]

“Dart” From Concise Bible Dictionary:

Arrow, short spear, javelin (2 Sam. 18:14; 2 Chron. 32:5; Job 41:26, 29; Prov. 7:23). FIERY DARTS signify darts tipped with combustible material which ignite in the projection or percussion and burn as well as pierce (Eph. 6:16: Compare Psa. 120:4). The Christian needs the shield of faith to quench such darts of the wicked one.

“Arrows” From Concise Bible Dictionary:

With the bow, a common weapon of the ancients. We know not of what wood the arrows of the Israelites were made. Apparently the arrows were sometimes poisoned (Job 6:4; Psa. 120:4; Num. 24:8; Deut. 32:23). Arrows are used metaphorically for the judgments of God (Psa. 38:2; Psa. 45:5); also for anything sharp and painful, as smiting by the tongue (Jer. 9:8).

Strong’s Dictionary of Hebrew Words:

Transliteration:
chets
Phonic:
khayts
Meaning:
from 2686; properly, a piercer, i.e. an arrow; by implication, a wound; figuratively, (of God) thunder-bolt; (by interchange for 6086) the shaft of a spear
KJV Usage:
+ archer, arrow, dart, shaft, staff, wound

From Manners and Customs of the Bible:

Ephesians 6:16. The shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked.
Some have thought that the allusion here is to poisoned arrows. See note on Job 6:4 (#405). There were darts, however, sometimes used in ancient warfare that were literally “fiery.” They were hollow reeds filled with naphtha or some other combustible material, and, being set on fire, were shot from slack bows. Whatever the arrows struck, the flames consumed. Water served to increase their violence; they could only be extinguished by being covered with earth. Large shields were used by the soldiers against whom these “fiery darts” were thrown, and thus their persons were protected