ganto

Ganto is the ordinary hand covering. A mitten, where the fingers share one compartment, is a mufganto or unufingra ganto when you need to be exact, but plain ganto covers both in speech.

The idioms travel across from French and English intact. Ĵeti la ganton is to throw down the gauntlet; preni per gantoj is to handle something delicately. Both are transparent enough that you can use them without warning your listener.

Word-building note: a glovemaker is a gantisto, and there is no need for a separate root. English keeps "gauntlet" as a distinct word for the armoured version; Esperanto says armoganto or leaves the context to do it, which is the usual trade the language makes.