masc. proper name, from Medieval Latin Theobaldus, from Old High German Theudobald, from theuda "folk, people" (see Teutonic) + bald "bold" (see bold). Form influenced in Medieval Latin by the many Greek-derived names beginning in Theo-.
then
thence
thenceforth
thenceforward
theo-
Theobald
theocentric
theocracy
theocrat
theodicy
theodolite