How to explain lutra/ontra "otter" and rutilus "shining"? Why *d, dH > t ?
JS Lopes
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***Rick ax: While your at at why the otter/mink/weasel trilogy of utria, lutria and nutria in Ibero-Romance. All three forms exist in Spanish and tend to be used rather indiscriminately to any water-dwelling member of the weasel family as well as any critter that lives in the water and has similar fur such as muskrats and "nutria" rats.