Kęstutis

There is a little bit more to the name Kęstutis than its description currently indicates. Kęstutis contains the well-documented Lithuanian masculine diminutive suffix -utis, which means that this name is a pet form of masculine given names that contain the Lithuanian element 'kęsti' meaning "to cope" as well as "to suffer, to endure, to undergo", such as: Kęsgailas, Kęsmantas, Kęstautas and Kęsvilas.

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For more information about this, please see the following links:

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- "Lithuanian Names" written by William R. Schmalstieg: http://www.lituanus.org/1982_3/82_3_01.htm (in English; specifically lists Kęstutis as an example of a given name that contains the diminutive suffix -utis)
- https://de.wikipedia.org/wiki/K%C4%99stutis_(Vorname) (in German)
- https://www.tevu-darzelis.lt/vaiku-vardai/Kestutis/ (in Lithuanian; mentions that Kęstutis is a diminutive of Kęstas, which itself is a short form of masculine names that contain the Lithuanian element 'kęsti')
- http://www.vardai.org/vardo-reiksme/Kestutis/ (in Lithuanian)
- http://day.lt/vardai/Kestutis (in Lithuanian)
- http://vardai.vlkk.lt/vardas/Kestutis (in Lithuanian)
- https://en.wikipedia.org/wiki/List_of_diminutives_by_language#Lithuanian (in English; lists some of the most common Lithuanian diminutive suffixes)
- http://www.su.lt/index.php?option=com_content&view=article&id=3885:hf-fl-sn-2007-12&catid=459&Itemid=1264&lang=en (in English; scroll down to "The tendencies of addressing children in the family" written by Giedrė Čepaitienė) [noted -ed]