Aorist Tense: Imperative
do it!

Simple fact.
Once and for all.
Specific.

 

The endings are exactly the same as in the Present Imperative. Added to the aorist stem of course.
 Note  The singular middle form is always stressed/pitched -οῦ

      do it! (sg)     do it! (pl)  
  active       -ετε
  middle     -ο   -εσθε

 

Present   Aorist    
  meaning  
singular plural singular plural
 λεῖπε
 αἱρεῖ [έ-ε]
 βάλλε
 γίγνου
 αἱροῦ [έ-ου]
 ἀφικνοῦ [έ-ου]
 λείπετε
 αἱρεῖτε [έ-ε]
 βάλλετε
 γίγνετε
 αἱρεῖσθε [έ-ε]
 ἀφικνεῖσθε [έ-ε]
 λίπε
 ἕλε
 βάλε
 γενοῦ
 ἑλοῦ
 ἀφικοῦ
 λίπετε
 ἕλετε
 βάλετε
 γένεσθε
 ἕλεσθε
 ἀφίκεσθε
 leave!
 take! capture!
 throw! pelt!
 become!
 choose!
 arrive! get there!

 

 A Further Note About Accentuation 
The accent in verbs is recessive, i.e. tends to move as far towards the front of the verb as possible. But there are, in the active voice, 5 exceptions to this rule: the last syllable is stressed/pitched in the 2nd aorist singular active voice of
 
  ἔρχομαι
  εὑρίσκω
  λαμβάνω  
  λέγω
  ὁράω

 
 
Present   Aorist    
  meaning  
singular plural singular plural
 
  εὕρισκε
  λάμβανε  
  λέγε
  ὅρα
  ἴτε
  εὑρίσκετε
  λαμβάνετε  
  λέγετε
  ὁρτε [ὁράετε]
 ἐλθ
 εὑρ
 λαβ
 εἰπ μοι  
 ἰδ
 ἔλθετε
 εὕρετε
 λάβετε
 εἴπετε μοι  
 ἴδετε
 come here! go there
 find it!
 take it!
 say it! tell!
 see! look at it!