[8] gnapa (f.) ‘leaning one’: A hap. leg. related to the weak verb gnapa ‘lean, droop’. According to Finnur Jónsson (1933-4, 266), the term might denote a high waterfall. Like some other river-names in this list, the heiti has a parallel among the heiti for ‘sea’, i.e. gnap ‘towering one’ (Þul Sjóvar 1/5).