Etymology of the English word isotope
the English word isotope
using the English prefix iso-
derived from the Greek word isos, ἴσος, ἴσως (similar (in amount and kind); likely; perhaps)
derived from the Greek word topos, τόπος (a spot ; location (as a position, home, tract, etc.); figuratively, condition, opportunity; specially, a scabbard)
derived from the Greek word koinos topos
derived from the Greek word omotopia