The origin of the word is the translation of the Hebrew word "b'rit," which is a solemn binding agreement; sometimes between two people (Genesis ch.21) and sometimes between a person and God (Genesis ch.15) or a nation and God (Exodus ch.19).
"Covenant" means an agreement, or a contract.
covenant means a promise with God
What was the original blood covenant?
if you mean what does the term mean, the covenant are an alliance of multiple alien races ( the sangheili, unggoy, jiralhanae, kig'yar, huragok, and the san' shyuum) but if you mean what are their beliefs, all of them follow their religious figure, the prophets (san' shyuum). the prophets feel that humans are inferior and should be eradicated.
puritan "covenant"
They believed they had a covenant with God.
The covenant is an alien species in halo including grunts and elites.
Combine means to come together and covenant means a binding agreement
new covenant
One of the definitions for the word covenant is "agree, especially by lease, deed, or other legal contract."
No, these are different concepts. Testament is something that is being testified, which is to say, solemnly asserted. A covenant is an agreement.
Demise is an Anglo-French legal term for a transfer of an estate, especially by lease. The word has an operative effect in a lease implying a covenant "for quiet enjoyment".