Phaethon /fāˈi-thon/

1. The son of Helios, the Greek sun-god, who came to grief in driving his father's chariot (Gr myth)
2. The tropicbird genus (as seeking to keep to the sun's course)

• insurmountableness
• insurmountably
• insurrection
• insurrectional
• insurrectionary
• insurrectionism
• insurrectionist
• insurrectionists
• insurrections
• insusceptibility
• insusceptible
• insusceptibly
• insusceptive
• insusceptively
• inswathe
• inswing
• inswinger
• inswingers
• inswings
• in sympathy
• in sympathy with
• in sync
• in synch
• int.
• Int.