An adverb referring to “then, next” in the future, a vowel-lengthened form of en appearing in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/109). Compare to tá, a similarly formed adverb referring to “then” in the past. Originally ēn was preceded a short-vowel form en, but this was deleted (PE23/109 note #109) and then ĕn was given the more elaborate meaning “in that future subsequent or consequent case, then, consequently”, apparently used as a conjunction.