Lihas heikentyy, jos et kuntoile.

Questions & Answers about Lihas heikentyy, jos et kuntoile.

How does the suffix -ntyä work in the verb heikentyy?
It is derived from the adjective heikko (weak) to create an inchoative verb, which describes a change of state. The suffix -ntyä turns 'weak' into 'to become weak' or 'to weaken'. It is in the third-person singular present tense here, taking the ending -y.
I have also seen the verb heiketä used for 'to weaken'. Is there a difference between heiketä and heikentyä?
They are largely interchangeable and both mean 'to become weak'. However, heikentyä with its -ntyä suffix focuses slightly more on the gradual, continuous process of weakening, whereas heiketä simply states the change of state.
What is the base word for kuntoile?
It comes from the noun kunto (condition or fitness). Adding the suffix -illa creates the verb kuntoilla (to exercise). It appears here as kuntoile because the negative verb et requires the connegative form, which for this verb type is formed by dropping the final -la from the dictionary form and adding an -e.
The word lihas (muscle) ends in -as. Does its stem change to -aa- like in the word asiakas (client)?
No, lihas is an important exception! While most words ending in -as have a stem with double vowels (like asiakas -> asiakkaan), lihas inflects with a -kse- stem instead. So its genitive is lihaksen, its partitive is lihasta, and its illative (into the muscle) is lihakseen.

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