Know how to use "fewer" and "less"? Find out.
Old English tom, tam "domesticated, docile," from Proto-Germanic *tamaz (cf. Old Norse tamr, Old Saxon, Old Frisian, Middle Low German, Middle Dutch tam, Old High German zam, German zahm "tame," Gothic tamjan "to tame"), from PIE *deme- "to constrain, to force, to break (horses)" (cf. Sanskrit damayati "tames;" Persian dam "a tame animal;" Greek daman "to tame, subdue," dmetos "tame;" Latin domare "to tame, subdue;" Old Irish damnaim "I tie up, fasten, I tame, subdue"). Possible ulterior connection with PIE *dem- "house, household" (see domestic). Meaning "spiritless, weak, dull" is recorded from c.1600.
early Middle English teme, from Old English temian "make tame" (see tame (adj.)); form altered 14c. by influence of the adjective. Related: Tamed; taming.