What does 原形 mean?
原形 is a Japanese noun meaning “original form, base form” in English. It is written as 原形 in kanji, げんけい in hiragana, and genkei in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
ギリシャ人たちは幾何学の理論的原形を作った。
The Greeks made theoretical models of geometry.