280. Elision is not common, and its use in writing as well as in
speaking is best avoided. It occurs most frequently in poetry.
a. The "-a" of the article may be elided before a word beginning with
avowel, or after a preposition ending in a vowel:
L' espero, l' obstino kaj la pacienco.
De l' montoj riveretoj fluas.
Kaj kantas tra l' pura aero.
b. The final "-o" of a noun may be elided in poetry. The original accent
of the noun remains unchanged:
Ho, mia kor', ne batu maltrankvile.
Sur la kampo la rozet'.
c. The final "-e" of an adverb is very rarely elided (except in the
expression "dank' al", which occurs in prose as well as in poetry):
Ke povu mi foj' je eterno ekdormi!
Dank' al vi, mi sukcesis. (Thanks to you, I succeeded.)