Grammar Lesson 1:

The prefix o-

The prefix o- is often used in established words to indicate the opposite of the main word.


logisk (logical) -> ologisk (illogical)
sund (healthy) -> osund (unhealthy)
förståndig (reasonable, wise) -> oförståndig (lacking reason)

This is also occurring in words that are not used without the o-.


obotlig (incurable)
oemotståndlig (irresistible)

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