A primitive root; to wane, i.e. Be sick -- faint.
H5263. nasas
I. [נָסַס] verb be sick (?; compare Syriac id., and especially debilis, infirmus, aegrotans, etc., PS2387; נְסַס ᵑ7 be sad; Assyrian nasâsu, wail, lament DlHWB 472; Arabic is go at a Gentle pace); — only
Qal Participle active (si vera lectio) נֹסֵס כִּמְסֹס Isaiah 10:18 like the wasting away of a sick man (so Thes Ew De Che Di Du).