Didrugar, a. unpitying
Didrugaredd, a. merciless
Didrwch, a. not fractious
Didrwm, a. not heavy
Didrwst, a. noiseless
Didrwydded, a. unlicensed
Didrydar, a. without clamour
Didryf, n. solitary spot
Didrythyll, a. not wanton
Didrywedd, a. without instinct