Dam: To Tame or domesticate from Proto-Indo-European
Other words that originate from Dam are:
Domesticate: Hunter gatherer tribes needed to be able to trust dogs to watch out for bears, wolves and other carnivores. They had to be safe to keep around children and become domesticated.
Tame: The first wolves were domesticated and made tame around 14,000 years ago.
Docile: to be made dumb and obedient like livestock
Domable: A 16th century word in English meaning ‘to tame’
Dom: meaning home in Polish.
Dominion: A chief or head of a tribe oversees a vast tract of land known as her/his dominion.
Dame/Madam: A lady in charge of a house.
Dominus: The Latin word for a lord or overseer of a home.
An Etymological Dictionary of the English Language By Walter W. Skeat (1910)
A Concise Dictionary of Middle English From A.D. 1150 To 1580 by A. L. Mayhew and Walter W. Skeat (1888)