Boyd’s Bible Dictionary:
(measure). Son of Er. Elmadam in R. V. (Luke 3:28).
Concise Bible Dictionary:
Son of Er, in the genealogy of the Lord Jesus (Luke 3:28).
Strong’s Dictionary of Greek Words:
Meaning:
of Hebrew origin (perhaps for 486); Elmodam, an Israelite
Jackson’s Dictionary of Scripture Proper Names:
possibly Greek for Alrnodad
Potts’ Bible Proper Names:
Immense; extension; the God of measure:―son of Er [ALMODAD], Luke 3:28. {Immensus}