# τηρέω
## Ancient Greek
### Etymology

Traditionally analyzed as τηρός (tērós, “a guard”) +‎ -έω (-éō, denominative verbal suffix), though Beekes considers τηρέω (tēréō) as the original formation and τηρός (tērós) as a back-formation.

### Pronunciation

* IPA: /tɛː.ré.ɔː/ → /tiˈre.o/ → /tiˈre.o/
* (5th BCE Attic) IPA: /tɛː.ré.ɔː/
* (1st CE Egyptian) IPA: /te̝ˈre.o/
* (4th CE Koine) IPA: /tiˈre.o/
* (10th CE Byzantine) IPA: /tiˈre.o/
* (15th CE Constantinopolitan) IPA: /tiˈre.o/

### Verb

τηρέω • (tēréō)
* to watch over, take care of, guard
** 522 BCE – 443 BCE, Pindar, Pythian Ode 2.161
** 422 BCE, Aristophanes, The Wasps 210
** 430 BCE – 354 BCE, Xenophon, Cynegeticus 6.1
** 423 BCE, Aristophanes, The Clouds 579
** 200 BCE – 118 BCE, Polybius, The Histories 22.15.2
** 36 BCE – 30 BCE, Diodorus Siculus, Historical Library 17.15
** 460 BCE – 395 BCE, Thucydides, History of the Peloponnesian War 2.13
** 460 BCE – 395 BCE, Thucydides, History of the Peloponnesian War 4.30
** to take care that
*** 384 BCE – 322 BCE, Aristotle, Politics 5.9.5
*** 384 BCE – 322 BCE, Aristotle, Politics 5.8.2
*** 421 BCE, Aristophanes, Peace 146
*** 411 BCE, Aristophanes, Thesmophoriazusae 580
*** 366 BCE – 348 BCE, Plato, Theaetetus 169C
*** 330 BCE, Demosthenes, On the Crown 276
*** 422 BCE, Aristophanes, The Wasps 372
*** 422 BCE, Aristophanes, The Wasps 1386
* to have an eye upon, give heed to, watch, observe
** 424 BCE, Aristophanes, The Knights 1145
** 460 BCE – 395 BCE, Thucydides, History of the Peloponnesian War 4.60
** 421 BCE, Aristophanes, Peace 146
** 380 BCE, Plato, The Republic 442A
** to watch for
*** 429 BCE, Sophocles, Oedipus the King 808
*** 460 BCE – 395 BCE, Thucydides, History of the Peloponnesian War 1.134
*** 460 BCE – 395 BCE, Thucydides, History of the Peloponnesian War 6.2
*** 384 BCE – 322 BCE, Demosthenes, Against Nicostratus 17
*** 497 BCE – 405 BCE, Sophocles, Electra 278
*** 391 BCE, Aristophanes, Assemblywomen 946
*** 460 BCE – 395 BCE, Thucydides, History of the Peloponnesian War 1.65
*** 460 BCE – 395 BCE, Thucydides, History of the Peloponnesian War 3.22
*** 384 BCE – 322 BCE, Demosthenes, Against Neaera 103
*** 350 BCE, Aristotle, On the Heavens 2.12.3
*** 384 BCE – 322 BCE, Aristotle, Rhetoric 2.5.8
*** 445 BCE – 380 BCE, Lysias, Collected Works 126.35
** (absolute) to watch, keep watch
*** 384 BCE – 322 BCE, Aristotle, Nicomachean Ethics 9.6.4
*** 384 BCE – 322 BCE, Aristotle, History of Animals 9.39.4
*** 460 BCE – 395 BCE, Thucydides, History of the Peloponnesian War 4.26
*** 480 BCE – 411 BCE, Antiphon of Rhamnus, Collected Works 117.14
* to observe or keep an engagement
** 436 BCE – 338 BCE, Isocrates, Collected Works 6D
** 445 BCE – 380 BCE, Lysias, Collected Works 189.37
** 330 BCE, Demosthenes, On the Crown 89

#### Derived terms

* ἐπιτηρέω (epitēréō)

### References

* ↑ Beekes, Robert S. P. (2010) “τηρέω”, in Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), with the assistance of Lucien van Beek, Leiden, Boston: Brill, →ISBN, page 1480

### Further reading

* “τηρέω”, in Liddell & Scott (1940) A Greek–English Lexicon, Oxford: Clarendon Press
* “τηρέω”, in Liddell & Scott (1889) An Intermediate Greek–English Lexicon, New York: Harper & Brothers
* τηρέω in Bailly, Anatole (1935) Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
* “τηρέω”, in Slater, William J. (1969) Lexicon to Pindar, Berlin: Walter de Gruyter
* G5083 in Strong, James (1979) Strong’s Exhaustive Concordance to the Bible