411 REFERENCE · Wiktionary
-rad
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Appendix:Variations of "rad"
Old Irish
Etymology
A conflation of two suffixes which survive separately in Welsh. Thurneysen and De Bernardo Stempel assign feminine animate derivatives to "ride" and non-feminine inanimate derivatives to "run".470-474
From sga cel-pro *-retom running, from sga ine-pro *Hret-. Cognate with cy -red.
From sga cel-pro *reidom ride (whence also the simple noun sga ríad), related to cel-pro *reideti to ride. Cognate to cy -rwydd.
Suffix
1 f n
Forms collective nouns from nouns or adjectives.
sga marc horse marcrad cavalry
sga cnáim bone cnáimred bones (collective)
Inflection
The suffix is usually feminine when attached to animate bases and neuter if attached to inanimate bases or adjectives.
-raid
-raid -rud
Derived terms
sga
Descendants
ga -ra
gv -rey
gd -radh
References
Further reading
263–64 163–64