From BiblePortal Wikipedia

Hastings' Dictionary of the New Testament [1]

Achim ( Ἀχείμ).—An ancestor of Joseph, according to the genealogy of our Lord in St. Matthew’s Gospel ( Matthew 1:14). The name may be a shortened form of Jehoiachim , or it may be for Ahiam (cf.  1 Chronicles 11:35) or Jachin (cf.  Genesis 46:10).

Smith's Bible Dictionary [2]

A'chim. Son of Sadoc and father of Eliud in our Lord's genealogy.  Matthew 1:14 The Hebrew form of the name would be Jachin , which is a short form of Jehoiachin , The Lord Will Establish.

Fausset's Bible Dictionary [3]

In Jesus' genealogy ( Matthew 1:14) Achim or Jachin (i.e. "he will establish"), contracted from Jehoiachin. The name may express the parents' faith that God would in His own time establish Messiah's throne, as  Isaiah 9:7 foretold.

Hastings' Dictionary of the Bible [4]

ACHIM (perhaps a shortened form of Jehoiachim ), an ancestor of our Lord (  Matthew 1:14 ).

Morrish Bible Dictionary [5]

Son or descendant of Sadoc, and father of Eliud: the name occurs only in  Matthew 1:14 .

Holman Bible Dictionary [6]

 Matthew 1:14

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [7]

( Ἀχείμ , perh. for יָכַין , Jachin [a contracted form of Jehoiachim], which the Sept., in  1 Chronicles 24:17, Graecizes Ἀχίμ [so the Vactican, but other texts have ᾿Γαχείν ]), the son of Sadoc and father of Eleazar, among the paternal ancestors of Christ ( Matthew 1:14), B.C. long ante 40, and post 410.

(See Genealogy (Of Christ).)

International Standard Bible Encyclopedia [8]

ā´kim ( Ἀχείμ , Acheı́m ): A descendant of Zerubbabel and ancestor of Jesus, mentioned only in  Matthew 1:14 .