Rhomb
/rɒm/noun
A parallelogram with four equal sides, especially one whose angles are not right angles.
Did you know?Ancient Greek rhombos referred not only to a geometric figure but also to a spinning top and a whirling magical instrument, sometimes used in erotic or divinatory rites.
Etymological Timeline
Proto-Indo-European
PIE
*wer-
“To turn, bend, or twist; a proposed root connected with later words for whirling motion”
Ancient Greek
Greek
ῥόμβος (rhombos)
“A spinning top, whirling object, or magical wheel; later, a geometrical diamond shape”
Ancient Greek
Greek
ῥόμβος (rhombos)
“A parallelogram with four equal sides, named for its resemblance to the spinning form”
Latin
Latin
rhombus
“A rhombus or diamond-shaped figure, borrowed from Greek”
16th Century
English
rhomb
“A geometric figure with four equal sides”
Modern English
English
rhomb
“A rhombus, especially in technical or specialized usage”