This is the 8297th most frequent French word.
wiseman
The French word "wiseman" does not exist; you may have meant "sage," which translates to "wise man" in English.
The word 'sage' here is used as a noun to denote a knowledgeable or wise person.
Le sage de la montagne donne des conseils précieux.
The wiseman of the mountain gives precious advice.
'Sage' is used as an adjective here to describe someone who acts wisely.
Elle est toujours sage dans ses décisions.
She is always wise in her decisions.
In this plural form 'sages', it refers to wise individuals or elders who are considered knowledgeable.