词根：-astr-, -aster-, -stell-

【词根含义】：星

【词根来源】：-astr-和-aster-来源于希腊语astron/aster(星),-stell-来源于拉丁语名词stella, stellae, f(星)。均可追溯至原始印欧语ster-。

【同源单词】：astral, astrodome, astroid, astrology, astronaut

词根：-nom-

【词根含义】：学科,学术,法则

【同源单词】：agronomy, astronomy, autonomy, economic, economical

词根词缀：astro-, astr-

【来源及含义】Greek: star, stars, star shaped; also pertaining to outer space

【同源单词】apastron, archaeoastronomer, archaeoastronomy, astro-alchemist, astrobiology, astroblast

词根词缀：nomo-, nom-, -nomy, -onomy, -nome, -nomic, -nomous, -nomical, -nomically

【来源及含义】Greek: law, order, arrangement, systematized knowledge of [something]; usage

【相关描述】Don’t confuse this element with the Latin nomo- which means "name" or another Greek nomo- which means "meadow" or "pasture".

【同源单词】agronomy, anomic, anomie, anomocarpous, anomophyllous, antinomian