lucubrate /looˈ or lūˈkū-brāt/

1. To study by lamplight
2. To discourse learnedly or pedantically

lucūbrāˈtion noun (archaic or facetious)

1. Study or composition protracted late into the night
2. A product of such study
3. A composition that smells of the lamp

luˈcūbrātor noun

• tourbillon
• tourbillons
• tour de force
• tour d'horizon
• toured
• tourer
• tourers
• Tourette's syndrome
• Tourette syndrome
• tourie
• touries
• touring
• touring car
• touring cars
• tourings
• tourism
• tourisms
• tourist
• tourist class
• tourist classes
• touristic
• touristically
• tourist information office
• tourist information offices
• tourist route