From en.wiktionary.org:
[smalltalk]
** English
[wikipedia]
*** Etymology
From [en]; according to [Alan Kay] (one of its creators):[1] <blockquote> The name actually appeared before the first Smalltalk design, which was done in 1971. I had mentioned to someone that the "prose" of then current programming languages was lower than a cocktail party conversation, and that great progress would have been made if we could even get to the level of making "smalltalk". It then occured[sic] to me that this word was also a great pun for a language aimed at the world of small children.
As for hype: Another motive for "smalltalk" was the practice at the time of naming operating, and other, systems (which hardly did anything) after mighty indo-european gods, such as Thor, Zeus, Odin, etc. I figured that if Smalltalk ever did something neat, then people would be pleasantly surprised. </blockquote>
*** Proper noun
[en-proper noun]
1. [en] An object-oriented , dynamically-typed , reflective programming language .
**** Derived terms
[en]
*** References
References: [1]. [title=Where did the name Smalltalk come from?] .
** German
*** Alternative forms
- [de]
*** Etymology
[de].
*** Pronunciation
- [de] - [de]
*** Noun
[m:n [ rare ] ,s,s]
1. small talk 2. a conversation involving small talk
**** Usage notes
- Generally masculine; the neuter is very rare.
**** Declension
[m:n [ rare ] ,s,s]
*** Further reading
- [Small_Talk] - [R:de:DWDS] [de]