KNIGHT'S SERVICE, Eng. law. It was, formerly, a tenure of lands. Those who held by knight's service were called: milites qui per loricas terras suas defendunt;: soldiers who defend the country by their armor. The incidents of knight's service were. homage, fealty, warranty, wardship, marriage, reliefs, heriots, aids, escheats, and forfeiture. Vide Socage.