SUMPTUOUS

SUMPTOUS 
(adj.) rich and superior in quality
"a princely sum", "gilded dining rooms"

MNENONICS

• (Tag: ) divide it like sumptu+ous;just focus on the SUMPT+U,SOUNDS LIKE SAMPAT(I)(IN HINDI..DHAN SAMPATI)SO SAMPATI MEANS MONEY,well if you have a lot of sumpati or money, you will spend it LAVISHLY,you will buy be able to buy all luxury.
  

PROVINCIAL

Provincial

(noun) a country person

synonyms : bucolic , peasant

• The provincial, dressed in a straw hat and baggy pants, was instantly recognizable amongst the others gathered in the inn’s dining room.
• (noun) (Roman Catholic Church) an official in charge of an ecclesiastical province acting under the superior general of a religious order
• "the general of the Jesuits receives monthly reports from the provincials"
• (adj.) characteristic of the provinces or their people
• "deeply provincial and conformist", "in that well-educated company I felt uncomfortably provincial", "narrow provincial attitudes"
• (adj.) of or associated with a province
• "provincial government"
  Provincial newspapers carry more personal interest stories as compared to national newspapers.

Mnemonics

1. (Tag: ) province somewhat SOUNDS very close to PRINCE..so the area that is under the control of a prince...IS A PROVINCE....AND ANY PROVINCE IS very limited in area.. so limited in outlook.
   

NEPOTISM

Nepotism

(noun) favoritism shown to relatives or close friends by those in power (as by giving them jobs)

The senior manager’s nepotism had resulted in three of his family members being inducted into the company. 

Mnemonics:

1. (Tag: Global) Nepotism comes from the Italian term "nepote", meaning "nephew (someone's relative)". Nepotism deals with the hiring of relatives.
   
2. (Tag: Hindi) ne + poti + sm ~ poti (grand-daughter) .. every grand father shows favoritism for his grand daughter.