The caper plant or its berry; used metaphorically for desire or appetite
ʾĂḇiyyônāh appears once in the Hebrew Bible (Ecclesiastes 12:5) as part of the Preacher's extended metaphor for old age and the decay of human faculties. The term refers to the caper plant (Capparis spinosa), whose berries were used in antiquity as an appetite stimulant. In context, the phrase 'the caperberry shall fail' (תָּפֵר הָאֲבִיּוֹנָה) signifies the failure of desire — the aging body loses even the appetite that once sustained it.
Ecclesiastes 12 is the great biblical meditation on human mortality. Every image — the dimming of sun and stars, the grinding ceasing, the doors shut in the street — speaks of the body's return to dust. The caperberry's failure is one final note in this symphony: even appetite, the most basic animal longing, fades. This grounds the Preacher's conclusion: fear God and keep His commandments, for this is the whole of man (12:13). Vanity is not nihilism but a summons to eternal perspective.