— errability , n. — errable , adj.
/err, er/ , v.i.
1. to go astray in thought or belief; be mistaken; be incorrect.
2. to go astray morally; sin: To err is human.
3. Archaic. to deviate from the true course, aim, or purpose.
[ 1275-1325; ME erren errer errare; akin to Goth airzjan, OHG irrôn, G irren ]
Syn. 2. transgress, lapse.