dusk-to-dawn

The term is a modern English compound, constructed from core Germanic elements to describe a continuous period. 'Dusk' originates from an Old English adjective for darkness, while 'dawn' comes from a verb meaning 'to become day'. The preposition 'to' links these two temporal boundaries, creating a span. This logical, literal construction—'from dark to day'—directly yields its modern adjectival meaning, specifying an activity or condition that persists throughout the night. It exemplifies how English readily forms precise, self-explanatory modifiers through compounding.

This is a compound adjective formed from two nouns and a preposition. 'Dusk' (from Old English 'dox', meaning dark, swarthy), 'to' (Old English 'tō', a preposition), and 'dawn' (from Old English 'dagian', meaning to become day). The hyphenated structure functions as a single lexical unit.