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Esperanto esti
German ist (borrowed)
Spanish estar (borrowed)
French est (borrowed)
Ancient Greek ἐστί (borrowed)
Proto-Indo-European *h₁ésti (derived)
Latin est (borrowed)

Esperanto esto (affix)
Esperanto ĉeesti (compound)
Esperanto ekestigi (affix)
Esperanto foresti (compound)
Esperanto estiĝi (affix)
Esperanto estigi (affix)
Esperanto estadi (suffix)
Esperanto estiel (mention)
Esperanto kunesti (affix)
Esperanto ekesti (affix)
Esperanto apudesti (compound)