Where does “contraparallelogram” come from?

contraparallelogram (English) comes from English parallelogram, from Latin parallēlogrammum, from Ancient Greek παραλληλόγραμμον, from Ancient Greek παράλληλος, from Ancient Greek ἀλλήλων, from Ancient Greek ἄλλος, from Ancient Greek κρίνω, from Proto-Hellenic kríňňō — to sift, separate, divide.

contraparallelogram (English): antiparallelogram

Definitions

  1. antiparallelogram

Ancestry of “contraparallelogram”, step by step

contraparallelogram traces back through two separate lines of ancestry.

via English parallelogram

StepLanguageWordMeaning
1EnglishparallelogramA convex quadrilateral in which each pair of...
2Latinparallēlogrammumparallelogram
3Ancient Greekπαραλληλόγραμμονbounded by parallel lines
4Ancient Greekπαράλληλοςbeside one another, side-by-side; parallel to or...
5Ancient Greekἀλλήλωνreferring back to a plural subject, and...
6Ancient Greekἄλλοςother, another, different, else; in combination...
7Ancient GreekκρίνωTo separate, divide, part, distinguish between...
8Proto-Hellenickríňňō
9Proto-Indo-Europeankrinyéti
10Proto-Indo-Europeankrey-to sift, separate, divide

via English Contra

StepLanguageWordMeaning
1EnglishContraA member of any of various rightist guerrilla...
2Latincontrāagainst
3Latinubīwhere? in what place?, in which place?
4Latincubī
5Proto-Italic*kʷuðeiwhere
Every word from Proto-Indo-European krey-Every word from Proto-Indo-European krinyétiEvery word from Proto-Hellenic kríňňō