jealous
Cross references: 1. envious jeal.ous \'jel-*s\ aj [ME jelous, fr. OF, fr. (assumed) VL zelosus, fr. LL zelus ze]al - more at ZEAL 1a: intolerant of rivalry or unfaithfulness 1b: disposed to suspect rivalry or unfaithfulness : apprehensive of the loss of another's exclusive devotion 2: hostile toward a rival or one believed to enjoy an advantage 3: vigilant in guarding a possession 4: distrustfully watchful : SUSPICIOUS - jeal.ous.ly av