Concise Bible Dictionary:
A characteristic of man as made out of the earth, of dust (1 Cor. 15:47-49). “The first man is of the earth, earthy,” in contrast to “the second man, out of heaven.” A man cannot rise morally above the earth except by the power of God in new creation.
Strong’s Dictionary of Greek Words:
Meaning:
from 5522; dusty or dirty (soil-like), i.e. (by implication) terrene