geomechanics

The story

1. Proto-Hellenic*gaya
2. Ancient Greekγαῖᾰ (gaîă)clip.
3. Ancient Greekγῆ (gê)
4. Ancient Greekγεω- (geō-)
5. Englishgeo-
6. Proto-Indo-European*megʰ-der.?
7. Ancient Greekμηχανή (mēkhanḗ)
8. Ancient Greekμηχανικός (mēkhanikós)
9. Latinmēchanicus
10. Englishmechanics
11. English todaygeomechanics

From geo- + mechanics.