diff --git a/lang/translations/de.po b/lang/translations/de.po
index 747b50e..f2303dc 100644
--- a/lang/translations/de.po
+++ b/lang/translations/de.po
@@ -50,4 +50,4 @@ msgstr "Texthervorhebung"
 
 msgctxt "Label used by assistive technologies describing the highlight feature toolbar."
 msgid "Text highlight toolbar"
-msgstr ""
+msgstr "Text hervorheben Werkzeugleiste"
diff --git a/lang/translations/et.po b/lang/translations/et.po
index f1d934e..4636f3b 100644
--- a/lang/translations/et.po
+++ b/lang/translations/et.po
@@ -50,4 +50,4 @@ msgstr "Tõsta esile"
 
 msgctxt "Label used by assistive technologies describing the highlight feature toolbar."
 msgid "Text highlight toolbar"
-msgstr ""
+msgstr "Teksti markeerimise tööriistariba"
diff --git a/lang/translations/lv.po b/lang/translations/lv.po
new file mode 100644
index 0000000..5abe161
--- /dev/null
+++ b/lang/translations/lv.po
@@ -0,0 +1,53 @@
+# Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+#
+#                                     !!! IMPORTANT !!!
+#
+#         Before you edit this file, please keep in mind that contributing to the project
+#                translations is possible ONLY via the Transifex online service.
+#
+#         To submit your translations, visit https://www.transifex.com/ckeditor/ckeditor5.
+#
+#                   To learn more, check out the official contributor's guide:
+#     https://ckeditor.com/docs/ckeditor5/latest/framework/guides/contributing/contributing.html
+#
+msgid ""
+msgstr ""
+"Language-Team: Latvian (https://www.transifex.com/ckeditor/teams/11143/lv/)\n"
+"Language: lv\n"
+"Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n != 0 ? 1 : 2);\n"
+
+msgctxt "Toolbar button tooltip for applying yellow marker (text highlight)."
+msgid "Yellow marker"
+msgstr "Dzeltens marķieris"
+
+msgctxt "Toolbar button tooltip for applying green marker (text highlight)."
+msgid "Green marker"
+msgstr "Zaļš marķieris"
+
+msgctxt "Toolbar button tooltip for applying pink marker (text highlight)."
+msgid "Pink marker"
+msgstr "Rozā marķieris"
+
+msgctxt "Toolbar button tooltip for applying blue marker (text highlight)."
+msgid "Blue marker"
+msgstr "Zils marķieris"
+
+msgctxt "Toolbar button tooltip for applying red pen (text color)."
+msgid "Red pen"
+msgstr "Sarkana pildspalva"
+
+msgctxt "Toolbar button tooltip for applying green pen (text color)."
+msgid "Green pen"
+msgstr "Zaļa pildspalva"
+
+msgctxt "Toolbar button tooltip for removing text highlight."
+msgid "Remove highlight"
+msgstr "Noņemt izcēlumu"
+
+msgctxt "Toolbar button tooltip for the text highlight feature."
+msgid "Highlight"
+msgstr "Izcelt"
+
+msgctxt "Label used by assistive technologies describing the highlight feature toolbar."
+msgid "Text highlight toolbar"
+msgstr "Teksta izcēluma rīkjosla"
diff --git a/lang/translations/pl.po b/lang/translations/pl.po
index 168469d..9dda151 100644
--- a/lang/translations/pl.po
+++ b/lang/translations/pl.po
@@ -50,4 +50,4 @@ msgstr "Podświetlenie"
 
 msgctxt "Label used by assistive technologies describing the highlight feature toolbar."
 msgid "Text highlight toolbar"
-msgstr ""
+msgstr "Pasek narzędzi podświetleń"