çekim: karşılaştırma hardnekkiger · üstünlük hardnekkigst
köken: From Middle Dutch hartnackich. Equivalent to hard (“hard”) + nek (“neck”) + -ig (“-y”), literally “having a hard neck”. Cognate with German hartnäckig. Compare halsstarrig.
köken: hård (“hard”) + nacke (“nape (back of the neck)”) + -ad (“-ed”). Calque of Hebrew קשה ערף (Exodus 33). A biblical term similar to Norwegian Nynorsk hardnakka, Ancient Greek σκληροτράχηλος (sklērotrákhēlos), Russian жестоковыйный (žestokovyjnyj), German halsstarrig etc.