πτέρνη
[[(5th c.BC: Hippocrates Medicus “περὶ ἄρθρων ἐμβολῆς” 3, “Epid.” 5.48, 9th c.AD: Photius Legal icographus, etc.)] Refs 5th c.BC+], later πτέρνᾰ [[(3rd c.BC: Lycophron Tragicus 500, LXX.Gen.3.15, etc.)] LXX+3rd c.BC+], ἡ, heel, [[ 8th c.BC: Ilias Homerus Epicus “Illiad” 22.397, Hp. [prev. cited], 4th c.BC: Aristoteles Philosophus “Historia Animalium” 494b7 ] Refs 8th c.BC+]; under part of the heel, [[ 4th-5th c.BC: Aeschylus Tragicus “Choephori” 209 (_plural_)] Refs 4th c.BC+]; heel-bone, [[ 2nd c.AD: Galenus Medicus 2.776, +others: proverbial, εἴπερ τὸν ἐγκέφαλον.. μὴ ἐν ταῖς π. φορεῖτε 4th c.BC: Demosthenes Orator 7.45. ] Refs 4th c.BC+]
__2 hoof, [[ LXX.Judg.5.22. ] LXX]
__3 heel of a shoe, [[ 3rd c.BC: Herodas Mimographus 7.21, 2nd c.AD: Phrynichus Atticista “Praeparatio Sophistica” p.69B. ] Refs 3rd c.BC+]
__4 footstep, [[ LXX.Cant.1.8. ] LXX]
__II metaphorically, foot or lower part of anything, πύργων [[ 3rd c.BC: Lycophron Tragicus 442; τῆς μηχανῆς 2nd c.BC: Polybius Historicus 8.6.2 ] Refs 3rd c.BC+]; of a mast, [[ 2nd-1st c.BC: Asclepiades Myrleanus Historicus cited in 2nd c.AD: Athenaeus Epigrammaticus 11.474f ] Refs 2nd c.BC+] (but, waist of a ship, [[ 2nd-1st c.BC(?): Hero Mechanicus “*Stereom.” 2.52). ] Refs 2nd c.BC+]
__II.2 butt-end of the ἀγκών of a torsion-engine, [[ 3rd-2nd c.BC: Philo Mechanicus “(Belopoeica) Excerpte aus Philons Mechanik - Ath. Berl. Akad.” 59.30, 66.2 ] Refs 3rd c.BC+]; of a surgical machine, [[ 4th c.AD: Oribasius Medicus 49.4.9, +others ] Refs 4th c.AD+]