Je was op zoek naar: umail (Engels - Duits)

* 1933 "three arabic treatises on alchemy by muhammad ibn umail (10th century ad)" translated from the arabic by h.e.
stapleton und m. hidayat husain: "three arabic treatises on alchemy by muḥammad bin umail (10th.

in later european literature ibn umayl became known by a number of names, including senior from the title sheikh becoming 'senior' by translation into latin, senior zadith from the honorific "al-sadik" becoming zadith phonetically and zadith filius hamuel, zadith ben hamuel or zadith hamuelis from an erroneous translation of ibn umail.
in der lateinischen alchemie war er auch als "senior" bekannt ("senior zadith filius hamuel", übersetzt: "der weise, der wahrhafte, sohn des umail").