Hirbwyll, n. deliberate caution
Hirchwedl, n. a long story
Hirder, n. length; longitude
Hirdrig, a. of long tarrying
Hirddydd, n. a long day
Hireinios, n. a long life
Hirfod, n. a long abiding
Hirfryd, a. of even mind
Hirglust, a. long eared
Hirglwyf, n. long-sickness