• folkd,
• fiolks,
• folck,
• folcus,
• volks,
• folked,
• forlks,
• feelks,
• olks,
• polks,
• felkt,
• florks,
• focas,
• forkes,
• foleys,
• fulkl,
• folers,
• focos,
• fokes,
• foles

• foolish,
• forks,
• flocks,
• fowles,
• floss,
• fools,
• folk,
• flicks,
• foals,
• folksy,
• flakes,
• follis,
• flows,
• fouls,
• folds,
• follies,
• foulk,
• Foulks,
• folse,
• foulke.

The adjective form of the word "folks" is "folksy".