per centum
Etymology: Latin, hundred; from the fact that the initial sound of Latin centum (pronounced approximately \\ˈken.ˌtu̇m\) represents an Indo-European palatal stop — more at hundred
: belonging to or constituting that part of the Indo-European language family in which the palatal stops did not in prehistoric times become palatal or alveolar fricatives — opposed to satem
Useful english dictionary. 2012.