Its source is gar hard, an Ancient Germanic name meaning "Strong spear."
This boy's name is used in Dutch.
Science and Philosophy
Gerardus 't Hooft (born 1946)
Joint winner of the 1999 Nobel Prize in Physics with Martinus J.G.Veltman for '''' elucidating the quantum structure of electroweak interactions in physics '''' (see list of Winners of the Nobel Prize for Physics)