gainimh ghéar = "sharp" sand, grit. = .i. gainimh gan aon chré tríd. = called in "greedy" sand for it required extra time to make mortar with it. gainimh ghorthach.
ualach gainimhe = load of Sand. "Clais ghainimhe" = log-ainm. poll gainime = Sand pit. Gainimh gortach = "greedy" sand = would take more than usual of lime to make mortar. No clay in it.