manrent
A contract, usually military and between Scottish clans, in which a weaker man or clan pledged to serve, in return for protection, a stronger lord or clan.
countable, historical, uncountable
Although there is no precise statistical analysis of assythments, bonds of manrent were only very rarely used in such circumstances.
Where it comes from
Borrowed from Middle Scots manrent, from Northern Middle English manreden, from Old English manrǣden. Doublet of manred.
Adapted from the Wiktionary entry manrent (CC BY-SA 4.0).