[4] Geysa: A hap. leg. Lit. ‘one rushing furiously’ (cf. the weak verb geysa ‘rush furiously, gush’; Finnur Jónsson 1934-5, 305; cf. Geysir, the famous hot spring in Iceland). The C variant, gessa, if derived from gassi m. ‘noisy fellow’, means ‘noisy one’.