καυσ-τικός, ή, όν,
capable of burning, opposed to καυστός (capable of being burnt), τὸ καυστὸν οὐ καίεται.. ἄνευ τοῦ καυστικοῦ [[ 4th c.BC: Aristoteles Philosophus “de Anima” 417a8, compare “Ph.” 251a16; τὸ πῦρ φύσει κ. 1st c.BC: Philodemus Gadarensis Epigrammaticus “Mus.” p.71 ] Refs 4th c.BC+] K.: comparative -ώτερος [[ 4th c.BC: Aristoteles Philosophus “de Partibus Animalium” 648b18 ] Refs 4th c.BC+]: superlative -ώτατος [[ [prev. author] “Cael.” 307a1, 1st c.AD: Cornutus Philosophus “de Natura Deorum” 32. ] Refs 1st c.AD+]
__b corrosive, caustic, δύναμις κ. [[ 1st c.AD: Dioscorides (Dioscurides) Medicus 2.4 (_comparative_)] Refs 1st c.AD+]; φάρμακα κ. [[ 2nd c.AD: Galenus Medicus 11.754, 1st c.AD: Zopyrus Medicus cited in 4th c.AD: Oribasius Medicus 14.57.1. ] Refs 1st c.AD+]
__2 of or by means of burning, βάσανοι [[ LXX.4Mac.6.27 ] LXX]. adverb - κῶς, βλάπτειν [[ 12th c.AD: Eustathius Episcopus Thessalonicensis 70.36. ] Refs]
__3 of persons, feverish, [[ 5th c.BC: Hippocrates Medicus “προρρητικόν” 1.70 ] Refs 5th c.BC+]; also τὰ κ. inflammatory humours, [[ [prev. author] “Epid.” 4.2. ] Refs]