Editorial note — Front matter (continued 3)
Reading edition
Like English "out" the preposition el often develops in composition a secondary sense of "thoroughly" or "completely" (cf. "I am tired out"): eltrovi, to find out, to discover. elpensi, to think out, to invent. ellabori, to work out, to elaborate. ellerni, to learn thoroughly, to master. eluzi, to use completely, to wear out (transitive).