means A punctuation mark (;) that links two closely related independent clauses or separates complex list items, falling somewhere between a comma and a full stop.

from A compound of Latin 'semi-' (half) and 'colon,' which comes from the Greek 'kōlon' meaning a limb or, in rhetoric, a clause or section of a sentence. The mark itself is much younger than its name's roots: it emerged in the late 15th century among Italian printers, with the Venetian printer Aldus Manutius often credited with popularizing it. The 'half' acknowledges its in-between status — not as final as the colon's full stop ancestry, just a pause with ambitions.