cardo

(Английский)

(declension-3) hinge (of a door or gate), usually a pivot and socket in Roman times.
(broadly, declension-3) a tenon, mortice, or socket
(declension-3) A street, that ran north–south, in a Roman town or military camp
(declension-3, figuratively) turning point, critical moment or action
(declension-3, figuratively) the symbolism of the hinge in ancient Roman religion and myth
(declension-3) a pole

Произносится как (IPA)

[ˈkar.doː]

Uncertain. Traditionally related to Ancient Greek κράδη (krádē, “twig, spray; swing, crane in the drama”), but unlikely as the concordant sense of swing is metaphorical and likely too recent. Or from Proto-Indo-European *(s)kerd- (“to move, sway, swing, jump”) and so cognate with Proto-Germanic *herzô (“bar, pivot, hinge”) (whence English har (“hinge”)). Compare in any case Old High German scerdo (“hinge”).