Equally surprising are the origins of our English words liberty and, especially, freedom. They have very different roots. The Latin libertas and Greek eleutheria both indicated a condition of independence, unlike a slave. (In science, eleutherodactylic means separate fingers or toes.) Freedom, however, comes from the same root as friend, an Indo-European word that meant "dear" or "beloved." It meant a connection to other free people by bonds of kinship or affection, also unlike a slave. Liberty and freedom both meant "unlike a slave." But liberty meant privileges of independence; freedom referred to rights of belonging.

Anyone got any further thoughts on this comparative etymology?

http://www.nytimes.com/2005/02/07/opinion/07fischer.html?th