diff --git a/languages/cy.ini b/languages/cy.ini
index 69e4c634bd4c24c4c39f2269d6ae501b0c8e9555..81674ef42a33cb92dc9135ea40b2c907674e0d4e 100644
--- a/languages/cy.ini
+++ b/languages/cy.ini
@@ -61,8 +61,10 @@ An error occurred during execution; please try again later. = "Bu gwall wrth gyf
 AND = "AND"
 anonymous_tags = "Tagiau Anhysbys"
 APA Citation = "Dyfyniad APA"
+applied_filter = "Hidlydd Cymwysedig"
 Article = "Erthygl"
 Ask a Librarian = "Gofynnwch i Lyfrgellydd"
+Associated country = "Gwlad gysylltiedig"
 Audience = "Cynulleidfa"
 Audio = "Sain"
 authentication_error_admin = "Ni fedrwn eich mewngofnodi yr adeg hwn. Cysylltwch â gweinyddwr eich system am gymorth"
@@ -77,6 +79,7 @@ Author Browse = "Pori Awduron"
 Author Notes = "Nodiadau'r Awdur"
 Author Results for = "Canlyniadau ar gyfer Awdur"
 Author Search Results = "Canlyniadau Chwilio am Awdur"
+Authority File = "Ffeil Awdurdod"
 Authors = "Awduron"
 Authors Related to Your Search = "Awduron yn berthnasol i'ch chwiliad"
 Auto configuration is currently disabled = "Ar hyn o bryd, mae awto-osod wedi'i analluogi"
@@ -240,6 +243,8 @@ Create New Password = "Creu Cyfrinair Newydd"
 Created = "Wedi'i Greu"
 Database = "Cronfa ddata"
 Date = "Dyddiad"
+Date of birth = "Dyddiad geni"
+Date of death = "Dyddiad marwolaeth"
 date_day_placeholder = "D"
 date_from = "o"
 date_month_placeholder = "M"
@@ -256,6 +261,7 @@ delete_list = "Dileu Rhestr"
 delete_page = "Dileu Tudalen"
 delete_selected = "Dileu'r Detholiad"
 delete_selected_favorites = "Dileu Ffefrynnau Dethol"
+delete_tag = "Dileu Tag"
 delete_tags = "Dileu Tagiau"
 delete_tags_by = "Dileu tagiau yn ôl"
 Department = "Adran"
@@ -267,6 +273,7 @@ Displaying the top = "Arddangos y brig"
 Document Inspector = "Archwilydd Dogfen"
 Document Type = "Math o Ddogfen"
 DOI = "DOI"
+Draw Search Box = "Llunio Blwch Chwilio"
 Due = "Erbyn"
 Due Date = "Dyddiad Cau"
 DVD = "DVD"
@@ -357,6 +364,7 @@ Favorites = "Ffefrynnau"
 Fee = "Fee"
 Feedback = "Adborth"
 feedback_name = "Enw"
+Field of activity = "Maes gweithgarwch"
 File Description = "Disgrifiad Ffeil"
 Filter = "Hidlo"
 filter_tags = "Hidlo Tagiau"
@@ -380,7 +388,9 @@ From = "o"
 Full description = "Disgrifiad llawn"
 Full text is not displayed to guests = "Ni ddangosir y testun llawn i westeion."
 fulltext_limit = "Cyfyngu i erthyglau â'r testun llawn ar gael"
+Gender = "Rhywedd"
 Genre = "Genre"
+Geographic Search = "Chwiliad daearyddol"
 Geographic Terms = "Termau Daearyddol"
 Geography = "Daearyddiaeth"
 Get full text = "Cael y testun llawn"
@@ -680,6 +690,7 @@ Number = "Rhifau"
 number_decimal_point = "."
 number_thousands_separator = ","
 OAI Server = "Gweinydd OAI"
+Occupation = "Galwedigaeth"
 of = "o"
 old_password = "Hen Gyfrinair"
 On Reserve = "Ar Gadw"
@@ -693,6 +704,7 @@ operator_exact = "yn (yn union)"
 OR = "OR"
 or create a new list = "neu greu rhestr newydd"
 original = "Gwreiddiol"
+Other associated place = "Lle cysylltiedig arall"
 Other Authors = "Awduron Eraill"
 Other Editions = "Rhifynnau Eraill"
 Other Libraries = "Llyfrgelloedd Eraill"
@@ -705,6 +717,8 @@ password_error_invalid = "Mae'r cyfrinair newydd yn annilys (e.e. mae'n cynnwys
 password_error_not_unique = "Ni newidiwyd y cyfrinair"
 password_maximum_length = "Ni all y cyfrinair fod yn hirach na %%maxlength%% nod"
 password_minimum_length = "Rhaid i'r cyfrinair gynnwys o leiaf %%minlength%% nod"
+password_only_alphanumeric = "Rhifau a llythrennau, A-Z yn unig"
+password_only_numeric = "Rhifau yn unig"
 Passwords do not match = "Nid yw'r cyfrineiriau yr un peth"
 Past = "Gorffennol"
 PDF Full Text = "Testun PDF llawn"
@@ -716,6 +730,8 @@ Physical Description = "Disgrifiad Corfforoll"
 Physical Object = "Gwrthrych Ffisegol"
 pick_up_location = "Casglu o'r Llyfrgell"
 Place a Hold = "Gwneud Cais"
+Place of birth = "Lleoliad geni"
+Place of death = "Lleoliad marwolaeth"
 Playing Time = "Amser Chwarae"
 Please check back soon = "Gwiriwch eto yn fuan"
 Please contact the Library Reference Department for assistance = "Cysylltwch â'r Ddesg Fenthyca am gymorth"
@@ -762,6 +778,7 @@ Recall This = "Adalw hwn"
 recaptcha_not_passed = "Methwyd y prawf CAPTCHA"
 Record Citations = "Cofnodi Dyfyniadau"
 Record Count = "Nifer y Cofnodion"
+Record Type = "Math Cofnod"
 Recover Account = "Adfer Cyfrif"
 recovery_by_email = "Adfer trwy e-bost"
 recovery_by_username = "Adfer trwy enw defnyddiwr"
@@ -806,6 +823,7 @@ Requests = "Ceisiadau"
 Reserves = "Ar Gadw"
 Reserves Search = "Chwilio Ar Gadw"
 Reserves Search Results = "Canlyniadau Chwilio Ar Gadw"
+result_count = "%%count%% canlyniadau"
 Results = "Canlyniadau"
 results = "canlyniadau"
 Results for = "Canlyniadau ar gyfer"
@@ -857,6 +875,8 @@ Serial = "Cyfresol"
 Series = "Cyfres"
 Set = "Set"
 Showing = "Dangos"
+sidebar_close = "Cwympo bar ochr"
+sidebar_expand = "Ehangu bar ochr"
 Similar Items = "Eitemau Tebyg"
 Skip to content = "Neidio i'r cynnwys"
 skip_confirm = "Ydych chi'n siŵr eich bod am hepgor y cam hwn?"
@@ -875,6 +895,7 @@ sort_author = "Awdur"
 sort_author_author = "Trefn y wyddor"
 sort_author_relevance = "Poblogrwydd"
 sort_callnumber = "Rhif Galw"
+sort_count = "Cyfri Canlyniadau"
 sort_relevance = "Perthnasedd"
 sort_title = "Teitl"
 sort_year = "Dyddiad Trefn Ddisgynnol"