Where does “supravalvar” come from?

supravalvar (English) comes from English valvar, from English -ar, from Middle English -ar, from Old English -ere, from Proto-West Germanic -ārī, from Proto-Germanic -ārijaz, from Latin -ārius, from Proto-Italic *-āzios — Forms relational adjectives to nouns (and rarely numerals).

Ancestry of “supravalvar”, step by step

supravalvar traces back through two separate lines of ancestry.

via English valvar

StepLanguageWordMeaning
1Englishvalvarvalvular
2English-arOf, near, or pertaining to; Forming nouns such as...
3Middle English-ar
4Old English-eremasculine agent suffix, originally applied only...
5Proto-West Germanic-ārī-er
6Proto-Germanic-ārijaz-er
7Latin-āriuser
8Proto-Italic*-āziosForms relational adjectives to nouns (and rarely numerals)

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 Proto-Italic *-āziosEvery word from Latin -āriusEvery word from English -ar