Origins
The word 'column' entered Middle English in the fifteenth century from Old French 'colonne,' from Latin 'columna' (column, pillar).βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ The Latin word is generally connected to 'columen' (summit, peak, the highest point of something), and both may derive from PIE *kel- (to project, to be prominent, to rise). If this etymology is correct, a column is etymologically 'the thing that rises' or 'the projecting thing' β a description that captures the essential visual and structural character of a vertical pillar.
In classical architecture, the column was the fundamental unit of monumental building design. The three Greek orders β Doric, Ionic, and Corinthian β are defined primarily by their column styles: the proportions of the shaft, the form of the capital, and the presence or absence of a base. Vitruvius, in his first-century BCE architectural treatise 'De Architectura,' codified these orders and established the theory that column proportions should reflect human body proportions β the Doric column embodying masculine solidity, the Ionic feminine grace, and the Corinthian decorative elaboration. This anthropomorphic theory of the column influenced Western architecture for two millennia.
The silent 'n' in the English spelling of 'column' is a remnant of the Latin 'columna.' In pronunciation, the final /n/ was dropped as the word passed through French, but English scribes, influenced by the Renaissance return to classical sources, restored the Latin spelling without restoring the Latin pronunciation. This creates one of English's many spelling-pronunciation mismatches β the same process that gave us the silent 'b' in 'debt' (Latin 'debitum') and the silent 'p' in 'receipt' (Latin 'recepta').
Figurative Development
The metaphorical extensions of 'column' are numerous and diverse. A 'column' of text β a vertical strip of printed matter on a page β dates from the earliest days of Western printing and derives from the resemblance of the tall, narrow text block to an architectural column. A newspaper 'column' β a regular feature by a named writer β is a further extension: the writer's piece occupies a column of text, and by metonymy, the content became the column. A 'column' of soldiers marching in formation is named for the long, narrow shape of the formation, which resembles a fallen column viewed from above.
The military meaning generated one of English's most peculiar etymological stories. Italian 'colonnello' (the commander of a column of soldiers) entered both French and English in the sixteenth century. French transformed 'colonnello' into 'coronel,' substituting an /r/ for the first /l/ through dissimilation (a phonological process where two similar sounds in a word become less similar). English borrowed the Italian spelling 'colonel' but adopted the French pronunciation /ΛkΙΛnΙl/, creating the famous mismatch between the written and spoken forms that has baffled English learners ever since.
The 'colonnade' β a row of columns supporting a roof or forming a covered walkway β derives from Italian 'colonnata,' from 'colonna' (column). The colonnade is one of the most recognizable features of classical and neoclassical architecture: St. Peter's Square in Rome, the Lincoln Memorial in Washington, and countless courthouse and government buildings employ colonnades to express dignity, order, and permanence. The word 'column,' from its humble PIE origin meaning something that sticks up, has become one of the fundamental vocabulary items of architectural civilization.