diff --git a/src/strings/cy.json b/src/strings/cy.json
index 2b5335273..70b4ffa89 100644
--- a/src/strings/cy.json
+++ b/src/strings/cy.json
@@ -414,7 +414,37 @@
     "BoxRear": "Blwch (cefn)",
     "BirthLocation": "Lleoliad genedigaeth",
     "BirthDateValue": "Genedigaeth: {0}",
-    "HeaderSpecialEpisodeInfo": "Gwybodaeth Episode Arbennig",
+    "HeaderSpecialEpisodeInfo": "Gwybodaeth Pennod Arbennig",
     "SpecialFeatures": "Nodweddion Arbennig",
-    "OptionDislikes": "Ddim yn hoffi"
+    "OptionDislikes": "Ddim yn hoffi",
+    "EnableFasterAnimations": "Animeiddiadau cyflymach",
+    "EnableDisplayMirroring": "Arddangos dyblyg",
+    "EnableDetailsBanner": "Baner Manylion",
+    "EnableCinemaMode": "Modd sinema",
+    "EditSubtitles": "Golygu is-deitlau",
+    "EditMetadata": "Golygu metaddata",
+    "EditImages": "Golygu delweddau",
+    "DropShadow": "Cysgod Crog",
+    "DownloadsValue": "{0} dadlwythiad",
+    "DirectStreaming": "Ffrydio uniongyrchol",
+    "DirectPlaying": "Chwarae uniongyrchol",
+    "DetectingDevices": "Dyfeisiau canfod",
+    "DeleteUser": "Dileu Defnyddiwr",
+    "DeleteMedia": "Dileu cyfryngau",
+    "DeleteImage": "Dileu'r Ddelwedd",
+    "DeleteAll": "Dileu'r Cyfan",
+    "DeathDateValue": "Marw: {0}",
+    "DatePlayed": "Dyddiad chwarae",
+    "DateAdded": "Dyddiad ychwanegu",
+    "DashboardVersionNumber": "Fersiwn: {0}",
+    "DashboardServerName": "Gweinydd: {0}",
+    "DashboardArchitecture": "Pensaernïaeth: {0}",
+    "CriticRating": "Sgôr beirniaid",
+    "ContinueWatching": "Parhewch i wylio",
+    "ConfirmDeletion": "Cadarnhau Dileu",
+    "ConfirmDeleteImage": "Dileu'r ddelwedd?",
+    "CommunityRating": "Sgôr gymunedol",
+    "ColorTransfer": "Trosglwyddo lliw",
+    "ColorSpace": "Gofod lliw",
+    "ColorPrimaries": "Sylfaenol lliwiau"
 }