Err

Dictionary Entry:

Pronunciation: \ˈer, ˈər\
Function: intransitive verb
Etymology: Middle English, from Anglo-French errer, from Latin errare to wander, err; akin to Old English ierre wandering, perverse, Gothic airzeis deceived
Date: 14th century

Analogy:

Err is to wander
As
big is to large

Thesaurus Entry: slip up, astray, blunder, wrong, mistake.
Headline:
Politician errs from his platform