Where does “monoptical” come from?

monoptical (English) comes from English optical, from English -ál, from English aldehyde, from German Aldehyd, from Latin alcohol, from Andalusian Arabic كُحُول, from Arabic كحل, from Arabic كُحْل — kohl, antimony paste.

Ancestry of “monoptical”, step by step

monoptical traces back through two separate lines of ancestry.

via English optical

StepLanguageWordMeaning
1EnglishopticalOf, or relating to sight; visual; Designed to...
2English-álOf or pertaining to. Adjectival suffix appended to various words, often nouns, to produce an adjective form. Often added to words of Latin origin, but used with other words also
3EnglishaldehydeAny of a large class of reactive organic...
4GermanAldehydaldehyde
5Latinalcoholkohl, collyrium, stibium; any other powder...
6Andalusian Arabicكُحُول
7Arabicكحلantimony; kohl, stibnite; black coloring of the...
8Arabicكُحْلantimony; kohl, stibnite
9Akkadianguḫlumkohl, antimony paste

via English mono

StepLanguageWordMeaning
1EnglishmonoClipping of mononucleosis; A bicycle or...
2Englishmono-API; one, single, only
3Ancient Greekμονο-one; mono-
Every word from Akkadian guḫlum
monoptical — Etymology, Origin & Word History | Etymology Explorer