1 GERSTA
or gesta, t, [A. S. gæstan], to annoy; g. hug e-s, to tease one, Greg. 64, Pr. 442, 623. 54; vér skulum g. hug hans, eigi sem þeir gerstu forðum á eyðimörkinni er Moysi fylgdu, Mart. 132: this word is quite obsolete, and chiefly used in old translations of legends.
2 GERSTA
II. part. gerstr, [Germ. garstig = hideous; O. H. G. garst = sour, harsh; cp. Engl. ghastly, agast], sour, dismal; gerstan dag, Skm. 30, Rm. 9:—sulky, hann leit gerstr við mér, he looked sulkily on me, Sighvat, Ó. H. 81 (Ann. for Nord. Oldk. 1866, p. 196).