Here are some etymologically similar words (of the same root de facto) shared between Kurdish (particularly Kirmanjí branch) and European languages:
Kurdish "
kerd" ~ English "herd", Old Norwegian "hyordh", German "Herde", Old Slavic "creda", Greek "korthys" (means "heap"), Lithuanian "kerdzius (means "shepherd")
Kurdish "
lísk" ~ English "light", German "Licht", Greek "leukos", Latin "lucere", Old Slavic "luci", Welsh "llug", Old Irish "loche".
Kurdish "
hewér" ~ English "air", Latin "aura/aerem", French "air", Greek "aer".
Kurdish "
wesht" (south) ~ English "east", German "Ost", Old Norwegian "austr", Greek "aurion" (means "morning"), Lithuanian "auszra" (means "dawn"), Latin "auster" (means exactly the same as Kurdish "wesht" ~ "south"). The last one, Latin "auster", attracts more interest since we get the name of the largest Southern island on the earth "Australia".
Kurdish "
enkir" ~ English "angry", Old Norwegian "angra"
Kurdish "
lan"/"len" ~ English "land", German "land", Dutch "land", Old Irish "land", Welsh "llan" (means "enclosure").
Kurdish "
hoz" (tribe; family; house) ~ English "house", Old English "hus", Dutch "huis", German "Haus". In this case the Germanic words as well as Kurdish "hoz" are still of uncertain Proto Indo-European root.
Kurdish "
zirk/zik" (heart/stomach) ~ English "heart", Old Norwegian "hyarta", Dutch "hart", German "herz", Greek "kardia", Old Irish "cride", Welsh "craidd", Lithuanian "shirdis", Old Slavic "sreda".
Kurdish "
jhenu" ~ English "knee", Greek "gony", Latin "genu", French "genou".
Kurdish "
man/mam" (old man/uncle) ~ English "man", German "Mann"
Kurdish "
wér" (brave/freeman) ~ English "hero", Lithuanian "vyras", Latin "vir", Old Irish "fer".
@ Azadkanjo
Regarding to your assumption about English "dart" and Kurdish "derd", although I couldnt find the Proto Indo European root, but I am afraid they arent etymologically alike. You may find a wide range of etymological materials about English words right here:
http://www.etymonline.com ; just type the word that you want to hunt up its root then you would get the etymology just like that