Well, dojít also means “come to” as in “understand” or “deduce”, besides the usual meaning of “finish walking”. However, dojetí is the gerund-like form of either the verb dojet (“come to”/“arrive” but not on foot but by a land vehicle; though dojezd or příjezd is used more often) or way more commonly the verb dojmout se (“get moved [emotionally]”).