nykill

Etymology
Possibly with dissimilation from, from. If so, it would be a doublet of. The initial n- might be from an verb. Compare the same shift in 🇨🇬 and 🇨🇬 (modern 🇨🇬 and 🇨🇬), but not in 🇨🇬, 🇨🇬 and also 🇨🇬.

Noun

 * 1) a key