Where does “supragovernmental” come from?

supragovernmental (English) comes from English governmental, 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 “supragovernmental”, step by step

supragovernmental traces back through two separate lines of ancestry.

via English governmental

StepLanguageWordMeaning
1EnglishgovernmentalRelating to a government; Relating to governing
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 supra

StepLanguageWordMeaning
1EnglishsupraUsed to indicate that the current citation is...
2Georgianსუფრაtablecloth; the table on which supra is conducted
3Persianسفرهtablecloth
4Arabicسُفْرَةvictuals; table, especially for eating
Every word from Akkadian guḫlum