A — 1: ὑστέρημα
(Strong's #5303 — Noun Neuter — husterema — hoos-ter'-ay-mah )

denotes (a) "that which is lacking," "deficiency, shortcoming" (akin to hustereo, "to be behind, in want"), 1—Corinthians 16:17; Philippians 2:30; Colossians 1:24 , RV, "that which is lacking" [AV, "that which is behind" (of the afflictions of Christ)], where the reference is not to the vicarious sufferings of Christ, but to those which He endured previously, and those which must be endured by His faithful servants; 1—Thessalonians 3:10 , where "that which is lacking" means that which Paul had not been able to impart to them, owing to the interruption of his spiritual instruction among them; (b) "need, want, poverty," Luke 21:4 , RV, "want" (AV, "penury"); 2—Corinthians 8:14 (twice) "want;" 2—Corinthians 9:12 , "wants" (AV, "want"); 2—Corinthians 11:9 , RV, "(the measure of my) want" [AV, "that which was lacking (to me)"]. See BEHIND , PENURY , WANT.

1—Thessalonians 4:12NEED.
B — 1: ἐνδεής
(Strong's #1729 — Adjective — endees — en-deh-ace' )

from endeo, "to lack," signifies "needy, in want," translated "that lacked" in Acts 4:34 .

C — 1: ὑστερέω
(Strong's #5302 — Verb — hustereo — hoos-ter-eh'-o )

akin to A, "to come or be behind," is used in the sense of "lacking" certain things, Matthew 19:20; Mark 10:21 ("one thing;" cp. No. 3 in Luke 18:22 ); Luke 22:35; in the sense of being inferior, 1—Corinthians 12:24 (Middle Voice). Elsewhere it is translated in various ways; see BEHIND , B, No. 1, COME, No. 39, DESTITUTE, FAIL, Note (2), NEED, WANT, WORSE.

C — 2: ἐλαττονέω
(Strong's #1641 — Verb — elattoneo — el-at-ton-eh'-o )

"to be less" (from elatton, "less"), is translated "had no lack," 2—Corinthians 8:15 (quoted from the Sept. of Exodus 16:18 ), the circumstance of the gathering of the manna being applied to the equalizing nature of cause and effect in the matter of supplying the wants of the needy.

C — 3: λείπω
(Strong's #3007 — Verb — leipo — li'-po )

"to leave," denotes (a) transitively, in the Passive Voice, "to be left behind, to lack," James 1:4 , "ye may be lacking in (nothing)," RV (AV, "wanting"); James 1:5 , "lacketh" (AV, "lack"); James 2:15 , RV, "be ... in lack" (AV, "be ... destitute"); (b) intransitively, Active Voice, Luke 18:22 , "(one thing thou) lackest," is, lit., "(one thing) is lacking (to thee);" Titus 1:5 , "(the things) that were wanting;" Titus 3:13 , "(that nothing) be wanting." See DESTITUTE , WANTING.

2—Peter 1:9