Cite this: eDIL s.v. airscíathad or

n (cf. sense (d) under 2 scíath) act of shielding: secht frithberta . . . ada andsum do ursciathu[d] (aurscíathadh, O'Dav. 1413 ) . . . ditiu maic aslui ar athair seven offences in which it is most difficult to shield the offender from the consequences of his action (e.g. a son who absconds from his father), Laws v 290.18 .