Supplication occupies a charged intersection in the depth-psychology corpus, where the somatic gesture of prostration, the legal-ritual structure of the hiketeia, and the emotional dynamics of shame, honour, and divine reciprocity converge. Benveniste traces the Indo-European roots with philological precision, demonstrating that the Latin supplex names a bodily posture — one bent at another’s feet — and that supplicium migrated from the sacred act of appeasement toward the secular register of punishment, a semantic fissure already visible in Plautus. Cairns situates supplication within the Greek economy of aidōs: the ritual contact of the hiketes creates an irreversible social pressure in which aidōs — as inhibiting shame, as prospective honour-sensitivity, and as positive respect — determines whether the appeal is granted, refused, or weaponised. Lattimore identifies supplication as one of Homer’s canonical type-scenes, a formal sequence no less structurally determined than arming or sacrifice. Cassian reads supplication as the first of the apostolic four modes of prayer, giving the term a Christian interiority absent from the Greek juridical frame. Auerbach identifies the supplicatio as the obligatory complement to the invocatio in Cervantes, illustrating its persistence as a rhetorical-devotional form. The tension across these positions — between supplication as embodied social coercion, as linguistic formula, and as interior disposition — makes the term a revealing lens on the relationship between power, vulnerability, and the sacred throughout the Western tradition.