Gorthrwm, a. oppressive
Gorthrychiad, n. a grooving
Gorthrymder, Gorthrymiant, n. oppression
Gorthrymiad, n. an oppressing
Gorthrymu, v. to oppress
Gorthrymus, a. oppressive
Gorthrymwr, n. an oppressor
Gorthwf, n. an overgrowth
Gortliwym, Gorthwymyn, a. overwarm
Gorthynu, v. to overstrain