-sum

• (Classical) IPA^(key): /sum/, [s̠ʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /sum/, [sum]

-sum m

1. accusative singular of -sus

From Proto-West Germanic *-sam, from Proto-Germanic *-samaz (“same as”). Akin to Old Frisian -sum, Old High German -sam, Old Norse -samr, Gothic -𐍃𐌰𐌼𐍃 (-sams), -𐍃𐌰𐌼𐌰 (-sama, “same as”), Old English sam (“whether, or”), Old English same (“same”).

• IPA^(key): /sum/

-sum

1. characterized by some specific condition or quality; same as

   angsum ― difficult, constricted, āþrotsum ― irksome, ġecwēmsum ― pleasing, pleasant

2. having or exemplifying

   wynsum ― joyful, winsome

• Middle English: -sum, -som, -some
  • English: -some
  • Scots: -some