admiral.

Etymology tree Arabic أَمِير (ʔamīr) Proto-Indo-European *h₂el- Proto-Indo-European *-is Proto-Indo-European *h₂élisder.? Proto-Italic *-ālis Medieval Latin -ālis ▲ Latin admīrorinflu. Medieval Latin admirālisder. Old French admiralder. Middle English admiral English admiral From Middle English admiral etc., from Anglo-Norman and Old French admiral etc., from Medieval Latin admiralis, admirallus, and admiralius, from irregular modification of amiralis etc. under the influence of the prefix ad- and particularly admiror (“to admire, respect”), from Arabic أَمِير (ʔamīr, “commander”) + -alis (“-al”). The ending is frequently but mistakenly folk etymologized to derive from the article ال (al-), particularly in Arabic أَمِير اَلبَحْر (ʔamīr al-baḥr, “commander of the sea”), first attested as a Fatimid office, or in Arabic أَمِير الْمُؤْمِنِين (ʔamīr al-muʔminīn, “Commander of the Believers, caliph”). It seems instead to have been borrowed from modification of only the first term in Arabic أَمِير الْأُمَرَاء (ʔamīr al-ʔumarāʔ, “emir of emirs, commander-in-chief”) as used as a title for important commanders in Norman Sicily in the mid-12th century. First attested as an English rank in reference to Gervase Alard of Winchelsea as "admiral of the fleet of the Cinque Ports". Doublet of emir, amir, Amir, and amira.