Bible Dictionaries
Arm

Vine's Expository Dictionary of NT Words

1: ἀγκάλη

(Strong's #43 — Noun Feminine — ankale — ang-kal'-ay )

used in the plural, in Luke 2:28 , originally denoted "the curve, or the inner angle, of the arm." The word is derived from a term signifying "to bend, to curve;" the Eng. "angle" is connected.

Note: Enankalizomai (en, "in," and a verb akin to No. 1), "to take into the arms, to embrace," is used in Mark 9:36; 10:16 , of the tenderness of Christ towards little children.

2: βραχίων

(Strong's #1023 — Noun Masculine — brachion — brakh-ee'-own )

"the shorter part of the arm, from the shoulder to the elbow," is used metaphorically to denote strength, power, and always in the NT of the power of God, Luke 1:51; John 12:38; Acts 13:17; frequently so in the OT, especially in Deuteronomy, the Psalms and Isaiah; see, e.g., Deuteronomy 4:34; 5:15; Psalm 44:3; 71:18 , where "strength" is, lit., "arm;" Psalm 77:15; Isaiah 26:11 , where "hand" is, lit., "arm;" Isaiah 30:30; 40:10,11 , etc.

Bibliography Information
Vines, W. E., M. A. Entry for 'Arm'. Vine's Expository Dictionary of NT Words. https://www.studylight.org/​dictionaries/​eng/​ved/​a/arm.html. 1940.