الفلسفة واللغة لا ينفك أحدهما عن الآخر وقد أوضحت الفلسفة للغة معاني أعمق ومرادفات ادق

The Arabic language is older than philosophy.

I think that all that we suffer from a change of concepts and a change of beliefs, was due to what is called philosophy

The development of language means the development of philosophy. As Arabic is thought to be at most two thousand years old, and considered one of the youngest of present languages, philosophy in Mesopotamia was already alive and kicking. Although many believe philosophy began in Greece, other types of philosophy were visible elsewhere.

Easy. The structuring of thought through reflections that decode reality.

I thank you for these useful knowledge additions as long as you give

Some theoretical terms or phrases employed or coined by philosophers have become entrenched in ordinary language. E.g. Sartre's "mauvais fois" or "bad faith", Nietzsche's "Übermensch" or "superman".

I think that is a very interest point.

Some days ago I ask a question very related to this: https://www.researchgate.net/post/Why_does_language_matter_to_philosophy

About your questions I think that are at least two key-points: by the very particular structure of one language some kind of philosophy may be produced. And, because of the nature of the questions raised by one philosophy (there are many) the language is bended in it self and new structures, new answers, may arise.

باعتقادي أن الفلسفة حدمت اللغة باعتبار أن اللغة أداة وسيلة تستخدمها كافة العلوم والفلسفة أكثر نظرا للنمط الجدلي الغالب على علومها والإجابة عن السؤال فيها بسؤال كل ذلك يجعل استعمال اللغة بألفاظها ومعانيها بشكل كبير يخدم اللغة