intransitive. Of an unfavourable event: to befall (with dative of person). Also impersonal as him mistimes: misfortune befalls him. Obsolete.

to come (also †go) to pass: to take place in the course of events; to happen, occur; to be accomplished or realized; to come to fulfilment.

esp. in to go awry, run awry, step awry, tread awry, walk awry: (of persons) to fall into error, do wrong; (of things) to turn out badly or…

intransitive. To happen unfortunately.

to go wrong. Of events, etc.: To happen amiss or unfortunately; to issue or result unsuccessfully or unprosperously.

intransitive. To grow weak or faint; to lose strength, courage, vitality, etc.; to fail, fall away. Obsolete.

spec. in to go haywire, to go wrong; to become excited or distracted, to become mentally unbalanced. colloquial (originally U.S.).

(a) transitive to mess up, to play havoc with; (b) intransitive to go wrong.