Jaka siyifikasyon Non pi bon: Temèt, Atantif, Aktif, Kè kontan, Jenere. Jwenn Jaka siyifikasyon nan non.
Jaka orijin nan premye non. Slovèn fòm Jacob (oswa James). Jwenn Jaka orijin nan premye non.
Non synonyme pou Jaka nan diferan peyi ak lang: Akiba, Akiva, Cobus, Coby, Coos, Giacobbe, Giacomo, Hagop, Hakob, Hemi, Iacobus, Iacomus, Iacopo, Iago, Iakob, Iakobos, Iakopa, Ib, Jákob, Jaagup, Jaak, Jaakko, Jaakob, Jaakoppi, Jaap, Jacky, Jacob, Jacobo, Jacobus, Jacó, Jacopo, Jacques, Jago, Jaime, Jakab, Jake, Jakes, Jakob, Jakov, Jakša, Jakub, Jákup, James, Jamey, Japik, Jaska, Jaume, Jaumet, Jay, Jaycob, Jaymes, Jeb, Jem, Jemmy, Jeppe, Jim, Jockel, Jokūbas, Kapel, Kimo, Koba, Kobe, Kobus, Koby, Koos, Koppel, Kuba, Lapo, Séamas, Séamus, Seumas, Shamus, Sheamus, Sjaak, Sjakie, Yaakov, Yago, Yakiv, Yakov, Yakub, Yakup, Yankel, Yaqoob, Yaqub, Yasha. Jwenn Jaka nan lòt lang.
Ki pi komen non ak siyati Windermuth: Burt, George, Wanda, Miles, Brenton. Jwenn Non ki ale ak Windermuth.