BDB2359
[זָכוּר] noun masculine male, i. q. זָכָר, but only with suffix; — collective כָּלזְֿכוּרְךָ Exod 23:17 = Exod 34:23 (both J E ), = Deut 16:16, of attendance at feasts; כָּלזְֿכוּרָהּ (of city refusing terms of peace) Deut 20:13 commanded to be slain (opposed to הַנָּשִׁים, הַטַּף, etc., Deut 20:14).