Complex sentence: The word "halva" entered the English language between 1840 and 1850 from the Yiddish "halva", which came from the Turkish "helva", itself ultimately derived from the "ḥalwá", a sweet confection.
Split into simpler sentences: The word "halva" entered the English language between 1840 and 1850 from the Yiddish "halva". The latter term came from the Turkish "helva", a word which itself ultimately derived from the "ḥalwá", meaning sweet confection.