Where does “Mg(OH)₂” come from?

Mg(OH)₂ (Translingual) comes from German MG, from Translingual g, from English gaseous, from English -eous, from English -ous, from Middle English -ous, from Old French -us, from Latin -ōsus.

Ancestry of “Mg(OH)₂”, step by step

Mg(OH)₂ traces back through two separate lines of ancestry.

via German MG

StepLanguageWordMeaning
1GermanMGInitialism of Maschinengewehr
2Translingualg
3EnglishgaseousRelating to, or existing as, gas; Of a liquid...
4English-eous"Used with nouns to form adjectives with the...
5English-ousUsed to form adjectives from nouns, to denote...
6Middle English-ous
7Old French-us-ous, used for forming adjectives
8Latin-ōsusose, -ous, -ful (full of or overly prone to)
9Old Latin-ōssus

via Translingual OH

StepLanguageWordMeaning
1TranslingualOH
Every word from Old Latin -ōssus
Mg(OH)₂ — Etymology, Origin & Word History | Etymology Explorer