Step 1: Concept Identification:
The query seeks the definition of the historical Sanskrit term 'Vanik'.
Step 2: Explanatory Details:
'Vanik' (also transliterated as Vaṇij) is an ancient Sanskrit term signifying a trader or merchant. It is strongly linked to the Vaishya varna, historically engaged in trade, commerce, and agriculture. The contemporary term 'Baniya' originates from 'Vanik'.
Merchant guilds were commonly known as 'shreni' or 'nigama'.
Peasants were referred to as 'karshaka' or 'krishaka'.
Kings were designated as 'raja' or 'nripa'.
Step 3: Conclusive Response:
'Vanik' denotes merchants.