goback

Although no subsequent year matched this high percentage of returnees, disconsolate "gobacks" remained a permanent feature of the overland emigrations […]

There may be one or a dozen or perhaps a hundred or so of supers with partly filled sections, and these are all designated as "gobacks". They are either placed on top of other supers that are being built out from foundation, or upon colonies that seem to show a special aptitude for finishing up gobacks.