1. strong, staunch, stout, sturdy; with infinitive, καρτερὸς ἐναίρειν strong to kill, (Iliad by Homer); τὰ καρτερώτατα the strongest , (Sophocles Tragicus)

2. with genitive possessed of a thing, lord or master of it, (Theognis Elegiacus)

3. like καρτερικός, steadfast, patient , πρὸς πάντα (Xenophon Historicus): obstinate , (Plato Philosophus)

4. of things, strong, mighty, potent , ὅρκος (Iliad by Homer); κ. ἔργα deeds of might , (Iliad by Homer); κ. μάχη strongly contested, desperate , (Herdotus Historicus); τὸ καρτερόν, τόλμης τὸ κ. the extremity of daring, (Euripides):—; κατὰ τὸ καρτερόν by force , (Herdotus Historicus), etc.; so, πρὸς τὸ καρτερόν (Aeschulus Tragicus); τὸ καρτερόν, absolute, (Theocritus Poeta Bucolicus)

5. of place, like ὀχυρός, strong , (Thucydides); τὸ καρτερώτερον τοῦ χωρίου (Thucydides)

6. adverb -ρῶς, strongly , etc. κ. ὑπνοῦσθαι to sleep soundly , (Herdotus Historicus)

7. the common comparative and Sup. are κρείσσων and κράτιστος (qq. see.): but the regular forms καρτερώτερος, -ώτατος, occur now and then, (Pindar), attic

(ML)