Truncating West Frisian etymologies

I'd say the duplication argument isn't that pressing for etymologies as the risk of incorrect divergence is in practice smaller than in definitions, though duplicating morphologically identical etymologies (e.g. just an older orthography) should be avoided. There certainly doesn't seem to be any harm in having older etyma when there isn't a dispute about the direction. In any case the older stage in geslachtsryp was also a calque, so that's not mere inheritance.