semiformal
UK[ˌsemiˈfɔːml]US[ˌsemiˈfɔːrml, ˌsemaɪ-]
adj
(of clothing, an event, etc.) suitable for occasions that are fairly formal but not the most formal.
Morpheme Breakdown
semi
formal
semi
half
formal
formal
Etymology
the word 'semiformal' is a modern english compound, directly combining the latin-derived prefix 'semi-' with the adjective 'formal'. the prefix 'semi-', meaning 'half', has been a productive element in english since the late middle english period, borrowed from latin. 'formal' entered english in the 14th century via old french, tracing back to the latin 'formalis', which pertains to form or shape. the logic of the compound is transparent: 'semiformal' literally denotes something that is 'half-formal' or 'partially formal', a concept that became linguistically necessary to describe dress codes and events occupying a middle ground between casual and strictly formal occasions.
Analysis
Structure: semi (half) + formal (formal)
semi: from latin 'semi-', a prefix meaning 'half', 'partially', or 'somewhat'. it functions as a modifier indicating a partial degree.
formal: from latin 'formalis', from 'forma' meaning 'form, shape'. it functions as the core adjective describing conformity to established rules or conventions.
Examples
the invitation specified a semiformal dress code, so he wore a blazer and dress pants.
the company's holiday party is a semiformal event, more relaxed than the annual gala.
she chose a semiformal cocktail dress for the evening wedding ceremony.