الرمح Spear

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Etymology of Arabic words: the word الرمح

(rumh) means Spear and according to AED has roots to the greek word λόγχη (longhi) which has the same meaning and comes from the antiquity.

P.S. Please comments.

فينيكس phoenix

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Etymology of Arabic words: the word فينيكس

(finiks) means phoenix and seems that it derives from the ancient greek word Φοίνιξ (finiks) which referred to the mythical bird which is reborn from its ashes. The same myth was in ancient Egypt according to Herodotus.

قرنبيط cauliflower

Etymology of Arabic words: the word قرنبيط

(karnabit) means cauliflower and according to AED Dictionary derives from the greek word κουνουπίδι (kounoupidi) which is a diminutive of the ancient word κάνωπον (kanopon).

القنب cannabis

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Etymology of Arabic words: the word القنب

(qinnab,qunnab) means cannabis (Wikipedia:Cannabis is an annual, dioecious, flowering herb. The leaves are palmately compound or digitate, with serrate leaflets) derives from the ancient greek word κάνναβη/κάνναβις (cannavis) which is probably a loan word in the Antiquity from the old languages of Scythian or Thracian.

الزنجفر cinnabar

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Etymology of Arabic words: the word الزنجفر

(zinzafr) means cinnabar ( is the common ore of mercury) and derives from the greek language. The name comes from κινναβαρι (kinnabari), a Greek word most likely applied by Theophrastus to several distinct substances.

P.S.
Theophrastus (Greek: Θεόφραστος; c. 371 – c. 287 BC^[1]), a Greek native of Eresos in Lesbos, was the successor to Aristotle in the Peripatetic school