Yannis, why do I have the same issue with all Greeks : hey, Radu did you knew that comes from the Greek word ,,so on and so on,, ...

dont take it personal but it becomes such a funny clichee when Greeks are negotiating the origins of everything ... it was even the theme of very succesful Hollywood movie two years ago : ,,My big fat Greek wedding,, ... but you have my promise nevertheless I will research (or try at least) the word
,,machaira,, ...
,,The boot hilt,, in the Caucasus or in Orient in general is something like our earliear ,, boomerang yataghan theory,, (am sure you remember that since it was so pro-Greek

) ... Eastearn Europe took influence from the western Asia but gave back a lot , believe it or not ...
Ariel : thank you for the very pertinent notes seems to me we should open a ,,koncerz, mec, kontchar,, open house round table discussion ... but if curved swords come from around Asia Minor I believe the Estoc to be a European creation at first glance ...