Pati (Sanskrit: पति, 𐬯𐬙) is a title meaning "master" or "lord". The word is in common usage in the Indian subcontinent today. Etymologically, the word derives from the Indo-European language family and finds references in various classical Indo-Iranian languages, including Sanskrit, Old Persian language and Avestan.[1] In modern-day Hindustani and other Indo-Aryan languages, pati and patni have taken on the meanings of husband and wife respectively when used as standalone words.[2] The feminine equivalent in Indo-Aryan languages is patni (literally, "mistress" or "lady"). The term pati is frequently used as a suffix, e.g. lakhpati (meaning, master of a lakh rupees).[2]
... in Iran ... dmana-paiti, the vis-paiti, the zantu-paiti, and the dahyu-paiti ... Vedic dam-pati- 'master of the house', cognate to Avestan dmana-paiti, Greek preserves δεσ-πότης 'master, despot, lord, owner'; the Avestan vis-paiti finds his etymological counterpart not only in Vedia vis-pati- 'chief of the settlement, lord of the house', but in Lithuanian vies-pats 'lord' ...
... lakh-pati, or lakh-patl, or lakh-pat, sm Owner of a lac (of rupees), a millionaire ...