hyperboloidal

English

Etymology

Etymology tree

Proto-Indo-European *úp

Proto-Indo-European *-er

Proto-Indo-European *upér

Proto-Hellenic *(h)upér

Ancient Greek ῠ̔πέρ (hŭpér)

Ancient Greek ὑπερ- (huper-)

Proto-Indo-European *gʷelH-der.

Proto-Hellenic *gʷəlnō

Ancient Greek βάλλω (bállō)

Ancient Greek ὑπερβάλλω (huperbállō)

Proto-Indo-European *-h₂

Proto-Indo-European *-éh₂

Proto-Hellenic *-ā́

Ancient Greek -ᾱ (-ā)

Ancient Greek -η (-ē)

Ancient Greek ὑπερβολή (huperbolḗ)bor.

New Latin hyperbolabor.

English hyperbola

Ancient Greek -ο- (-o-)

Proto-Indo-European *weyd-

Proto-Indo-European *-os

Proto-Indo-European *wéydos

Proto-Hellenic *wéidos

Ancient Greek εἶδος (eîdos)

Proto-Indo-European *-os

Proto-Indo-European *-s

Proto-Indo-European *-ēs

Proto-Hellenic *-ēs

Ancient Greek -ης (-ēs)

Ancient Greek -ειδής (-eidḗs)

Ancient Greek -οειδής (-oeidḗs)bor.

Latin -oīdēslbor.

English -oid

English hyperboloid

Proto-Indo-European *h₂el-

Proto-Indo-European *-is

Proto-Indo-European *h₂élisder.?

Proto-Italic *-ālis

Latin -ālislbor.

Old French -albor.

▲

Latin -ālis

Old French -elbor.

▲

Latin -ālisbor.

Middle English -al

English -al

English hyperboloidal

From hyperboloid + -al.

Pronunciation

• Rhymes: -ɔɪdəl

Adjective

hyperboloidal (not comparable)

1. Having the shape or form of a hyperboloid. [from early 18th c.]
   • 1748, John ROBERTSON, “The Contents”, in A General Treatise of Menſuration: Second edition‎^[1], page xv:

     Prop. 30. Of hyperboloidal fruſstrums - 306