S: (n) service ((law) the acts performed by an English feudal tenant for the benefit of his lord which formed the consideration for the property granted to him)
S: (n) common law, case law, precedent (a system of jurisprudence based on judicial precedents rather than statutory laws) "common law originated in the unwritten laws of England and was later applied in the United States"
S: (n) precedent (a subject mentioned earlier (preceding in time))
Adjective
S: (adj) precedent (preceding in time, order, or significance)