Very educational.

The umbrella is a decreasing-loving from the word "sort", today in the vast majority of cases so called a female umbrella."

You are wrong, exactly the opposite. The word “Zontik” was borrowed from the Niderl. zondec – the curtain from the sun on the ship. Later, the last slang "ik" was discarded because of the similarity with the diminishing-lapping suffix, forming the usual word "sonde".