To pass out of, escape from, the mind, memory, etc. Also without const.

intransitive. to move to mind: to come to mind. Also to move of (also out of) mind: to be forgotten. Obsolete.

intransitive. To vanish out of sight, disappear from view. of objects present only to the mind.

intransitive. To pass into oblivion, insignificance, etc. Also: to pass from notice.

intransitive. To slip away (from memory). Obsolete.