τεταρτ-αῖος,
Aeolic dialect τετόρταιος [[ 3rd c.BC: Theocritus Poeta Bucolicus 30.2 ] Refs 3rd c.BC+], α, ον, on the fourth day, τ. γενέσθαι to be four days dead, [[ 5th c.BC: Herodotus Historicus 2.89; ἀφικνεῖσθαι τεταρταίους 5th-6th c.BC: Plato Philosophus “Respublica” 616b. ] Refs 5th c.BC+]
__2 τ. πυρετός quartan fever, [[ [prev. author] “Ti.” 86a; ῥῖγος “POxy.” 1151.37 (5th c.AD)] Refs 5th c.AD+]; so without πυρετός, [[ 5th c.BC: Hippocrates Medicus “ἀφορισμοί” 2.25, “POxy.” 1088.38 (1st c.AD), etc.] Refs 5th c.BC+]; πυρετῷ καὶ τεταρταίῳ [[ “IG” 3.1424 ] Refs]; τ. πονεῖσθαι to have fits every four days, [[ 5th c.BC: Hippocrates Medicus “περὶ κρισίων” 36; ἑπτὰ τεταρταίῳ μῆνας ἔκαμνε πυρί 3rd c.BC: Callimachus Epicus “Aetia” 3.1.17; λύτρα τεταρταίοιο δυσαλγέος οὕνεκα παῦσαν “Rev.Bibl.” 14.295 (from Lycia). ] Refs 5th c.BC+]
__II τεταρταίη, ={ἡ τετάρτη}, the fourth day, [[ 4th-3rd c.BC: Aratus Epicus 806. ] Refs 4th c.BC+]
__II.2 quartan fever, [[ 5th-6th c.AD: Orphica “Lithica” 635. ] Refs 5th c.AD+]