zenith

zenith, cenith [Ar. samt al-raʾs = direction of the head], (astr., also ~ith capitis) the point in the sky directly overhead, zenith. [meridianus circulus] ceniz capitum mundique supermeat axes Hanv. VIII 393; voco ‥ ~ith capitis extremitatem linee recte ducte a centro terre per caput hominis usque ad firmamentum Gros. 16; est solstitium estivale et non potest sol magis accedere ad ~ith capitis nostri Sacrob. Sph. 90; quando stella est in linea meridiei ‥ accedit ad ~ith capitis aspicientis Bacon Maj. I 131; stelle per cenith †transeuntes [l. transeuntis] unus solus radius perpendicularis ‥ intrat in oculum aspicientis Peckham Persp. III 13; distancia poli septentrionalis a cenith capitis ville tue Wallingf. Rect. 422; medietas [mundi] ‥ ab oriente usque ad cenit [v. l. cenith] habentibus speram rectam est pars anterior Wycl. Log. III 9.