lamp
UK[læmp]US[læmp]
n
a device that uses electricity, oil, or gas to produce light.
n
an electrical device that produces radiation for therapeutic or cosmetic purposes.
Etymology
the word 'lamp' traces a direct lineage from ancient greek to modern english without significant morphological segmentation in its current form. it originates from the greek verb 'lampein', meaning 'to shine', which gave rise to the noun 'lampas' for a torch or light-source. this term was adopted into latin as 'lampas' and subsequently into old french as 'lampe', before entering middle english. the core semantic logic has remained remarkably consistent, evolving from a general term for a shining object like a torch to specifically denote a manufactured vessel or device designed to produce artificial light.
Analysis
the word 'lamp' is a simplex word. it is derived from the middle english 'lampe', from old french 'lampe', from latin 'lampas', from greek 'lampas' (torch, lamp, beacon), from the verb 'lampein' (to shine).
Examples
she switched on the bedside lamp to read her book.
the old street lamp cast a warm, yellow glow on the pavement.
the dermatologist used a special ultraviolet lamp for the treatment.