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 krinyéti →Every word from Proto-Hellenic kríňňō →