Prig
A prig (), sometimes spelled prigg, is a person who shows an inordinately zealous approach to matters of form and propriety—especially where the prig has the ability to show superior knowledge to those who do not know the protocol in question. They see little need to consider the feelings or intentions of others, relying instead on established order and rigid rules to resolve all questions.
The prig approaches social interactions with a strong sense of self-righteousness.
Etymology and usage
The first edition of H.W. Fowler's Modern English Usage has the following definition:
The character of the prig was encapsulated in Charles Dickens' portrait of the day-nurse Betsy Prig—capable of a "rapid change from banter to ferocity" but always referred to by night-nurse Sairah Gamp as "the best of creeturs"—in his novel Martin Chuzzlewit:
A glimpse of Mrs Prig's nursing technique is afforded by the following exchange, as Sairah Gamp arrives to take over from Mrs Prig in the supervision of a patient: