-edh

From Proto-Brythonic *-eð, from Proto-Celtic *-iyā, from Proto-Indo-European *-éh₂. Cognate with Welsh -edd, Irish -e, Ancient Greek -ῐ́ᾱ (-ĭ́ā), and Latin -ia.

• IPA^(key): /-ɛð/

-edh m (plural -edhow)

1. Forms masculine abstract nouns

   ‎meur (“great”) + ‎-edh → ‎meuredh (“majesty, greatness”)

2. (by extension, physics) Forms masculine abstract nouns denoting measurable quantities with defined units

   ‎fors (“force, strength”) + ‎-edh → ‎forsedh (“force (N)”)

   ‎doos (“dense”) + ‎-edh → ‎dòsedh (“density (m/V)”)

   ‎gronn (“mass, heap”) + ‎-edh → ‎gronnedh (“mass (m)”)

-edh pl

1. Uncommon noun pluralization suffix

   ‎el (“angel”) + ‎-edh → ‎eledh (“angels”)

   ‎modrep (“aunt”) + ‎-edh → ‎modrebedh (“aunts”)

   ‎lethwrek (“milkmaid”) + ‎-edh → ‎lethwragedh (“milkmaids”)