þykkni

== Icelandic == === Etymology === From þykkur +‎ -ni. === Pronunciation === IPA(key): /ˈθɪhknɪ/ === Noun === þykkni n (genitive singular þykknis, no plural) concentrate (substance in a condensed form) dense vegetation thick cloud cover ==== Declension ==== ==== Derived terms ==== regnþykkni (“nimbostratus”)