aster
GreekVariants
Related Roots
About This Root
From Greek astron and Latin astrum (star). Powers astronomy vocabulary — astronaut (star sailor), astronomy (star arrangement/study), astronomical (immensely large, like star distances). The star flower aster is named for its shape. Disaster (dis- + astrum) originally meant 'bad star' — an ill-fated celestial omen.
Associated Words
asterisk
The star-shaped symbol (*); to mark with this symbol
asteroid
A rocky body orbiting the Sun, smaller than a planet
astro-engineer
An engineer specializing in space or aerospace technology
astrolabe
A historical instrument for measuring the altitude of stars
astrologer
A person who predicts events based on the positions of stars and planets
astrological
Relating to astrology or the study of celestial influence on human affairs
astrology
The belief that celestial positions can predict human affairs
astronaut
A person trained to travel in space
astronautical
Relating to astronauts or space travel
astronautics
The science and technology of space flight
astronomer
A scientist who studies the stars and universe
astronomical
Relating to astronomy; extremely large
astronomically
To an enormously large degree; relating to astronomy
astronomy
The scientific study of stars, planets, and the universe
astrospace
Outer space beyond Earth's atmosphere
calamity
A sudden event causing great damage or suffering; a disaster
cataclysm
A sudden, violent large-scale disaster or upheaval
cataclysmic
Causing great destruction or upheaval
catalog
A systematic list of items or products; to classify into a catalogue
cataract
A clouding of the eye's lens; a large waterfall
catastrophe
A sudden large-scale disaster causing great suffering
catastrophic
Causing great damage or disaster
consider
To think about seriously
disaster
A sudden catastrophic event causing great damage or suffering
disastrous
Causing great damage or failure; catastrophic
disastrously
In a way that causes great harm or failure
interstellar
Existing or occurring in the space between stars
post-disaster
Occurring or relating to the period after a disaster
star
a luminous body in the sky; a famous performer; to be the lead actor
stardom
The status or fame of being a celebrated performer
starry
Full of visible stars; resembling a star; 繁星点点的,星光灿烂的