The Greek form Eliakeim transliterates the Hebrew Elyaqim (God raises up/God will establish). It appears in Matthew 1:13 in Jesus' genealogy and in Luke 3:30. In the OT, the most prominent Eliakim was the palace administrator under Hezekiah (Isaiah 22:20–25; 2 Kings 18–19), whom Isaiah describes as a type of the Messiah — one given the key of David.
The name Eliakeim (God raises up) appears in Isaiah's great Messianic passage about the one who receives "the key of David": "What he opens no one can shut, and what he shuts no one can open" (Isaiah 22:22). This Isaianic Eliakim is explicitly typological — pointing beyond himself to the Messiah. Revelation 3:7 applies this exact language to Jesus. The name itself is a promise: God raises up His servant and gives him authority. Every Eliakim in Scripture is a signpost pointing to the ultimate one whom God raises up.