Romanticism (n): An artistic, literary and intellectual movement that arose as a response to Enlightenment rationalism and that sought to stress the links between emotion and aestheticism.
Wax (v): To become fuller, to increase in size or strength.
Murti (noun, Sanskrit): A representation used to embody the divine in Hindu and some Buddhist worship.
Impressionism (n): A French art movement from the late 19th century characterised by an emphasis on outdoor painting, everyday subjects and colour theory.
Revenant (n): An apparition or ghostly spirit.
Alleviate (v): To reduce the severity of a problem; to ease; to bring relief.
William: A boy's name traceable to old Germanic and Norman French roots, meaning 'helm' or 'protector'. It has been the name of four English kings.
Ochreous: One of the few synonyms for orange.
Dusk: The point when darkness falls. It follows sunset by some minutes, typically occurring when the sun is several degrees below the horizon. The intervening period is known as l'heure bleue.
Gongoozle (v): To observe canal life, especially the operation of locks, from the bank in a leisurely fashion. A gongoozler is a person engaging in this activity.
Refreshing (adj): revitalising, stimulating; giving new vigour or impetus; an antidote to the staid or boring.
Sextant (n): An instrument that, by measuring the angle between two visible objects, allowed sailors to plot their whereabouts on nautical charts.
Giverny (proper noun): a village in northern France immortalised by the painter Claude Monet.
Transport Heavy (proper noun): Typeface used on UK road signs.
Iris pseudacorus: Latin name for the yellow flag iris, here growing in the wild in a riverbed.
Anas platyrhynchos: Latin name for the wild duck, or mallard, one of the UK's most common duck species.
Pisum sativum: Latin name for the garden pea.
Orienteering (n): An activity that requires competitors to navigate round a point-to-point course in the fastest possible time.
Hellenic (adj): Related to Greek language and archaeology, especially from the 5th and 4th centuries BCE.