We don't have synonyms for yeman yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are yeoman, leman and deman.
(n) :
Obsolete spelling of yeoman. [(UK) An official providing honorable service in a royal or high noble household, ranking between a squire and a page. Especially, a yeoman of the guard, a member of a ceremonial bodyguard to the UK monarch (not to be confused with a Yeoman Warder).]
(n) :
Obsolete spelling of yeoman. [(UK) An official providing honorable service in a royal or high noble household, ranking between a squire and a page. Especially, a yeoman of the guard, a member of a ceremonial bodyguard to the UK monarch (not to be confused with a Yeoman Warder).]