Proto-Indo-European Roots

Root/Stem: *k'r.d-
Meanings:  heart
Cognates ():
Hellenic Greek kradié, kradia 'heart'
Italic Latin cor, gen. cordis 'heart'
Celtic Common Celtic *krdjo-n >
Old Irish cride 'heart', Welsh craidd, Breton kreiz 'middle', Irish croithe, Scottish crithe
Indic Sanskrit hr.d- 'heart'
Iranian Avestan [email protected]@d 'heard'
Anatolian Hittite kir, kardi- 'heart', Palaic kart-, Lycian kride-
Armenian Armenian sirt 'heart'
Germanic Common Germanic *xirtan >
Gothic hairto, Old English heorte, Old Frisian herte, Old Saxon herta, Old High German herza, Old Norse hjarta;
Dutch hart, German Herz
Baltic Lithuanian širdis, dial. šerdis 'heart', Latvian sirds, Old Prussian seyr 'heart', Sudovian sêras
Slavic Common Slavic *sïrdïce 'heart' >
Russian serdtse, Ukrainian & Polish serce, Bulgarian [email protected], Macedonian & Serbo-Croatian & Slovene srce, Czech & Slovak srdce
Notes: A perfect Indo-European root which was preserved fairly well in the majority of dialects. In fact the original root used to be *ker-, and *kr.d- it one of its derivatives shaped by the element *-d-.