The Collaborative International Dictionary
Litherness
Lither \Li"ther\ (l[imac]"[th][~e]r), a. [AS. l[=y][eth]er bad,
wicked.]
Bad; wicked; false; worthless; slothful. [Obs.]
--Chaucer.
Not lither in business, fervent in spirit.
--Bp.
Woolton.
Note: Professor Skeat thinks `` the lither sky'' as found in Shakespeare's Henry VI. ((Part I. IV. VII., 21) means the stagnant or pestilential sky. -- Li"ther*ly, adv.
Wiktionary
litherness
n. 1 (context obsolete English) wickedness. 2 (context obsolete English) laziness, indifference.