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Origin and history of vertical

vertical(adj.)

1550s, "of or at the vertex, situated at the highest point, directly overhead," from French vertical (1540s), from Late Latin verticalis "overhead," from Latin vertex (genitive verticis) "highest point" (see vertex).

The meaning "placed or directed straight up and down, being in a position or direction perpendicular to the horizon" is attested by 1704. As a noun meaning "the vertical position or line" from 1834. Related: Vertically; verticality.

vertical

Entries linking to vertical

1560s, in geometry, "the point opposite the base of a figure," from Latin vertex (plural vertices) "highest point," literally "the turning point," originally "whirling column, whirlpool," from vertere "to turn" (from PIE root *wer- (2) "to turn, bend").

The meaning "point in the heavens directly overhead," also generally, "highest point" of anything is by 1640s. Vertex was used late 14c. in English medical writing as "top of the head." Also compare vortex.

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