Janika kacha mma aha pụtara: Kechioma, Obodo, Ifịk, Eru, Enyi na enyi. Nweta Janika pụtara aha.
da Costa kacha mma aha nna pụtara: Eji obi ụtọ, Eru, Ifịk, Okike, Oge a. Nweta da Costa pụtara aha nna.
Janika si malite aha mbụ. Diminutive of János. Nweta Janika si malite aha mbụ.
Aha ikpeazụ da Costa kasị nkịtị na Angola, Brazil, East Timor, Guinea-Bissau, Mozambique. Nweta da Costa aha nna na-agbasa.
Agakọta aha maka Janika na mba dị iche iche na-asụ asụsụ: Anže, Deshaun, Deshawn, Ean, Eoin, Evan, Ganix, Ghjuvan, Gian, Gianni, Giannino, Giannis, Giovanni, Gjon, Hampus, Hank, Hanke, Hankin, Hann, Hanne, Hannes, Hannu, Hans, Hasse, Honza, Hovhannes, Hovik, Hovo, Iain, Ian, Iancu, Ianto, Iefan, Ieuan, Ifan, Ioan, Ioane, Ioann, Ioannes, Ioannis, Iohannes, Ion, Ionel, Ionuț, Iván, Ivan, Ivane, Ivano, Ivica, Ivo, Iwan, Jaan, Jānis, Jackin, Ján, Janek, Janez, Jani, Jankin, Janko, Janne, Jannick, Jannik, Jan, Jan, Janusz, Jean, Jeannot, Jehan, Jehohanan, Jens, Jo, João, Joannes, Joan, Joãozinho, Joĉjo, Johan, Johanan, Johann, Johannes, Johano, John, Johnie, Johnnie, Johnny, Jón, Jonas, Jone, Joni, Jon, Jon, Jóannes, Jóhann, Jóhannes, Joop, Jouni, Jovan, Jowan, Juan, Juanito, Juha, Juhán, Juhan, Juhana, Juhani, Juho, Jukka, Jussi, Keoni, Keshaun, Keshawn, Nelu, Nino, Ohannes, Rashaun, Rashawn, Seán, Sean, Shane, Shaun, Shawn, Shayne, Siôn, Sjang, Sjeng, Vanni, Vano, Vanya, Xoán, Xuan, Yahya, Yan, Yanick, Yanko, Yann, Yanni, Yannic, Yannick, Yannis, Yehochanan, Yianni, Yiannis, Yoan, Yochanan, Yohanes, Yuhanna, Zuan, Žan. Nweta Janika na ndị ọzọ asụsụ.
Kasị nkịtị aha na aha ikpeazụ da Costa: John, Manuel. Nweta Aha na-aga na da Costa.
Ndakọrịta nke Janika na da Costa bụ 77%. Nweta Ndakọrịta nke Janika na da Costa.