In general contexts, caustic describes bluntly and harshly critical remarks, statements, or ways of being and communicating, as in "a caustic remark" or "caustic humor." In contexts involving chemistry, caustic is a synonym of corrosive, and is used to describe things capable of destroying or eating away matter by chemical action

Assay is a technical word meaning "to test something (such as a metal or drug) to find out what it contains or to assess its value."

Suffrage means “the right to vote in an election.”

1. the male head of family or household

2. a male who is a leading figure in a movement, discipline, industry, enterprise and so on

Duplicity is a formal word that refers to dishonest behavior meant to trick or deceive someone.

continually shifting or rapidly changing

noun: someone honored for great achievements; figuratively someone crowned with a laurel wreath

adjective: worthy of the greatest honor or distinction

verb: award or crown with or as if with a laurel wreath for excellence or achievement

verb: appoint a poet laureate