mesencephalon/mesenʹsef(ə)lon/ noun

• uppish
• uppity
• upraise
• uprate
• upright
• upright piano
• uprise
• uprising
• upriver
• uproar
• uproarious
• uproot
• uprose
• uprush
• upsadaisy
• ups and downs
• upscale
• upsell
• upset
• upset price
• upset the apple cart
• upshot
• upside
• upside down
• upside-down cake