They are unusual words, but not really obscure. I have always liked “inveigle”. Probably just someone who likes to read older books. There have been a lot of

They are unusual words, but not really obscure. I have always liked “inveigle”. Probably just someone who likes to read older books. There have been a lot of so-called inkhorn terms in English; some made it into common use, some remained but are rare, some died on the vine.