KGT p. 67: As protection against these various weapons, a warrior often carrieda shield, or yoD, basically a large plate of metal. The verb form of "shield"is also yoD, and to "shield oneself" is yoD'egh. (Although the federationStandard word "shields" refers to both the old hand-held protective armor andthe force field protecting a vessel--the newer meaning clearly based on theolder--in Klingon, there is no connection between the two. The force field on aship is called botjan. To shield a ship, one must "activate the shields," orbotjan chu'.)