41 A final -ν (ν movable) was added at will to some words.
These are (1) words in -σι (-ψι, -ξι), (2) verbs in -ε in the
third
singular, (3) ἐστι is, (4) sometimes the irregular ᾔει went and
ᾔδει knew.
- a. Poetry and inscriptions alike show that ν movable
was
freely added before vowels and consonants; before vowels it
could be omitted and elision used instead. The writer chose
whichever treatment best pleased his ear.