What are labels?

[Anton]

Mark means that after stripping the prefix "o" the remainders are spelled unusually similarly. tol, kol, tor  - all those look similar to each other. I explained that this might be the consequence of a nomenclator solution. When you have a list of homogenous notions and invent vords to represent them, you possibly would construct them, in succession, quite similar to each other. E.g. "abc", "abd", "abe" etc.