Nightshade rhymes with:
accolade, adelaide, andrade, ansaid, barricade, bridesmaid, cavalcade, centigrade, countertrade, downplayed, escapade, eyeshade, fusillade, gatorade, inlaid, kitchenaid, marinade, marmalade, medicaid, mermaid, motorcade, niaid, overlaid, parlayed, peyrelevade, relayed, renegade, retrograde, ricocheted, rollerblade, rubbermaid, sallade, switchblade, upbraid, waylaid