From Proto-Indo-European *wóyde, from *weyd-. Compare εἶδον (eîdon, “to see”) and εἴδομαι (eídomai, “to seem”), which originate from different aspectual forms of the same verbal root. Cognates include Proto-Slavic *věděti, Old Armenian գիտեմ (gitem), Sanskrit वेद (véda), Latin vīdī, and Proto-Germanic *witaną (English wit).
οἶδᾰ • (oîda)
The perfect inflections function as present tense, and the pluperfect as imperfect. The inflection is highly variable and irregular, and reflects a more archaic inflectional pattern.
number | singular | dual | plural | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
first | second | third | second | third | first | second | third | ||||||
active | indicative | οἶδᾰ | οἶσθᾰ/οἶδᾰς | οἶδε | ἴστον | ἴστον | ἴσμεν, οἴδᾰμεν |
ἴστε, οἴδᾰτε |
ἴσᾱσῐ(ν) | ||||
subjunctive | εἰδῶ | εἰδῇς | εἰδῇ | εἰδῆτον | εἰδῆτον | εἰδῶμεν | εἰδῆτε | εἰδῶσῐ(ν) | |||||
optative | εἰδείην | εἰδείης | εἰδείη | εἰδεῖτον | εἰδείτην | εἰδεῖμεν/εἰδείημεν | εἰδεῖτε/εἰδείητε | εἰδεῖεν/εἰδείησᾰν | |||||
imperative | ἴσθῐ | ἴστω | ἴστον | ἴστων | ἴστε | ἴστων | |||||||
active | |||||||||||||
infinitive | εἰδέναι | ||||||||||||
participle | m | εἰδώς | |||||||||||
f | εἰδυῖᾰ | ||||||||||||
n | εἰδός | ||||||||||||
Notes: | This table gives Attic inflectional endings. For conjugation in dialects other than Attic, see Appendix:Ancient Greek dialectal conjugation.
|
number | singular | dual | plural | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
first | second | third | second | third | first | second | third | ||||||
active | indicative | οἶδᾰ | οἶσθᾰ/οἶδᾰς | οἶδε | ἴστον | ἴστον | ἴσμεν/ἴδμεν, εἴδομεν |
ἴστε, εἴδετε |
ἴσᾱσῐ(ν) | ||||
subjunctive | εἰδῶ | εἰδῇς | εἰδῇ | εἰδῆτον | εἰδῆτον | εἰδῶμεν | εἰδῆτε | εἰδῶσῐ(ν) | |||||
optative | εἰδείην | εἰδείης | εἰδείη | εἰδεῖτον | εἰδείτην | εἰδεῖμεν/εἰδείημεν | εἰδεῖτε/εἰδείητε | εἰδεῖεν/εἰδείησᾰν | |||||
imperative | ἴσθῐ | ἴστω | ἴστον | ἴστων | ἴστε | ἴστων | |||||||
active | |||||||||||||
infinitive | εἰδέναι, ἴδμεναι/ἴδμεν/ἰδέμεν |
||||||||||||
participle | m | εἰδώς | |||||||||||
f | εἰδυῖᾰ, ἰδυῖα |
||||||||||||
n | εἰδός | ||||||||||||
Notes: | Dialects other than Attic are not well attested. Some forms are based on conjecture. Use with caution. For more details, see Appendix:Ancient Greek dialectal conjugation.
|
number | singular | dual | plural | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
first | second | third | second | third | first | second | third | ||||||
active | indicative | ᾔδη/ᾔδειν | ᾔδησθᾰ/ᾔδεις | ᾔδει(ν) | ᾖστον | ᾔστην | ᾖσμεν/ᾔδεμεν/ᾔδειμεν | ᾖστε/ᾔδειτε/ᾔδετε | ᾖσᾰν/ᾔδεσᾰν | ||||
Notes: | This table gives Attic inflectional endings. For conjugation in dialects other than Attic, see Appendix:Ancient Greek dialectal conjugation.
|
number | singular | dual | plural | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
first | second | third | second | third | first | second | third | ||||||
active | indicative | ᾔδεα/ᾔδη/ᾔδειν/ἠείδειν | ᾔδησθᾰ/ἠείδης/ᾔδεις | ᾔδεε(ν)/ᾔδη/ἠείδη | ᾖστον | ᾔστην | ᾖσμεν/ᾔδεμεν/ᾔδειμεν | ᾖστε/ᾔδειτε/ᾔδετε | ᾖσᾰν/ᾔδεσᾰν, ἴσαν | ||||
Notes: | Dialects other than Attic are not well attested. Some forms are based on conjecture. Use with caution. For more details, see Appendix:Ancient Greek dialectal conjugation.
|
number | singular | dual | plural | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
first | second | third | second | third | first | second | third | ||||||
middle | indicative | εἴσομαι | εἴσῃ, εἴσει |
εἴσεται | εἴσεσθον | εἴσεσθον | εἰσόμεθᾰ | εἴσεσθε | εἴσονται | ||||
optative | εἰσοίμην | εἴσοιο | εἴσοιτο | εἴσοισθον | εἰσοίσθην | εἰσοίμεθᾰ | εἴσοισθε | εἴσοιντο | |||||
middle | |||||||||||||
infinitive | εἴσεσθαι | ||||||||||||
participle | m | εἰσόμενος | |||||||||||
f | εἰσομένη | ||||||||||||
n | εἰσόμενον | ||||||||||||
Notes: | This table gives Attic inflectional endings. For conjugation in dialects other than Attic, see Appendix:Ancient Greek dialectal conjugation.
|
number | singular | dual | plural | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
first | second | third | second | third | first | second | third | ||||||
middle | indicative | εἴσομαι | εἴσεαι | εἴσεται | εἴσεσθον | εἴσεσθον | εἰσόμε(σ)θᾰ | εἴσεσθε | εἴσονται | ||||
optative | εἰσοίμην | εἴσοιο | εἴσοιτο | εἴσοισθον | εἰσοίσθην | εἰσοίμε(σ)θᾰ | εἴσοισθε | εἰσοίᾰτο | |||||
middle | |||||||||||||
infinitive | εἴσεσθαι | ||||||||||||
participle | m | εἰσόμενος | |||||||||||
f | εἰσομένη | ||||||||||||
n | εἰσόμενον | ||||||||||||
Notes: | Dialects other than Attic are not well attested. Some forms are based on conjecture. Use with caution. For more details, see Appendix:Ancient Greek dialectal conjugation.
|