historical：历史的，有关历史的

词根词缀：history历史(y略) + -ical形容词词尾

• hydrodynamic
• hydrodynamics
• hydroelectric
• hydrofluorocarbon
• hydrofoil
• hydrogen
• hydrogenate
• hydrogen bomb
• hydrogen peroxide
• hydrographer
• hydrography
• hydrology
• hydrolysis
• hydropathic
• hydrophobia
• hydroplane
• hydroplaning
• hydroponics
• hydrospeed
• hydrotherapy
• hydrous
• hydroxide
• hyena
• Hygeia
• Hygieia