Hans, in the ouput at http://www.ousia.tk/grc-order.pdf, you can see that the vocabulary list, in both Spanish and ancient Greek are wrong sorted. After that, I discovered sort-lan.lua. There must be something else interferring in the sorting, because I read this list in the linked document: κατὰ, ἐκλαλεῖσθαι, κοινώσεσθαι, κρίσιν, κρίσιν, ἐκτὸς, ἐκχωρήσω, ἐλευθέρων, λιθιῶντας (it isn’t following the order in sort-lan.lua). I have two improvements. One is for the Spanish sort order. Accents don’t change sorting order: orders = { "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "ñ", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", } Diacritics don‘t affect to Greek alphabetic sorting. This sort order makes more sense: orders = { "α", "β", "γ", "δ", "ε", "ζ", "η", "θ", "ι", "κ", "λ", "μ", "ν", "ξ", "ο", "π", "ρ", "σ", "σ", "τ", "υ", "φ", "χ", "ψ", "ω", }, Could those be added to ConTeXt? Many thanks for your help, Pablo -- http://www.ousia.tk