knave

/neษชv/
noun
  1. 1

    A boy; especially, a boy servant.

  2. 2

    Any male servant; a menial.

  3. 3

    A tricky, deceitful fellow; a dishonest person.

  4. 4

    A playing card marked with the figure of a servant or soldier; a jack.

Synonyms

Source: https://en.wiktionary.org/wiki/knave