The Missing Vowel: The Evolution of Kolesterol vs Kolestrol

The variant 'kolestrol' emerges due to a phenomenon called syncope, which is the loss of one or more sounds from the middle of a word. In daily conversation, speakers tend to accelerate pronunciation causing the unstressed 'e' vowel to become inaudible, which then carries over into informal writing.

This word is borrowed from the Dutch 'cholesterol', which originally roots from the Greek 'chole' (bile) and 'stereos' (solid), with the chemical suffix '-ol'. In the Indonesian adaptation process, the original spelling maintains the vowel 'e' in the middle of the word.

In the context of public health, this term is used so frequently that spelling errors are considered common. The version without the 'e' is often found on alternative medicine banners or social media conversations because it is perceived as more concise and aligns with oral phonetics.