"Peculiar" refers to something that is strange, unusual, or distinctive in nature. It often describes characteristics or behaviors that set something or someone apart from what is considered normal or typical. The term can carry both positive and negative connotations, depending on the context in which it is used.
That is gibberish, not a word in English.
Unusual or strange.
No. Peculate (meaning 'embezzle') has the derivatives Peculated Peculates Peculating Peculation/s Peculators and Peculiar (meaning 'unusual') has the derivatives Peculiarity/ies Peculiarly Peculiars These are the only "pecul~" words I can come up with.
the act of illegally taking or using money, especially public money, that you are responsible for managing: The cabinet minister is being held on charges of peculation of government funds. Want to learn more? (Definition of peculation from the Cambridge Business English Dictionary © Cambridge University Press).