The Collaborative International Dictionary
Sackless
Sackless \Sack"less\, a. [AS. sacle['a]s; sacu contention + le['a]s loose, free from.] Quiet; peaceable; harmless; innocent. [Obs. or Prov. Eng.]
Wiktionary
sackless
a. (context provincial Northern England poetic or archaic English) blameless, guiltless, innocent.