「ら」 in 「平たいら」meaning


What does 「ら」 means in word 「平たいら」 based on word 「平たい」? Word taken from anime
"Non non biyori Repeat" and means the names of Triops (animals): 「ひらたいらさん」.




平 can be read a few different ways. ひら is a common _kun'yomi_. Another one is
たいら, more commonly spelled 平ら with the ら as _okurigana_. The たいら reading
itself derives from prefix た- (as in たやすい) + ひら. The た- prefix is described in
some dictionaries as simply 「語調を整える」 ("adjusts the tone"), but it might come
from た as the oldest known reading for 手 ("hand").

Both ひら and たいら mean "flat". Combining the two into a name ひらたいら could suggest
something very flat. I'm not familiar with the anime _Non non biyori Repeat_ ,
but Triops is also known in English as a ["tadpole
shrimp"](https://en.wikipedia.org/wiki/Triops), and this appears to be
[カブトエビ](https://ja.wikipedia.org/wiki/%E3%82%AB%E3%83%96%E3%83%88%E3%82%A8%E3%83%93)
in standard Japanese. These look a bit like a cross between a [horseshoe
crab](https://en.wikipedia.org/wiki/Horseshoe_crab) and a shrimp or lobster.




平 can be read a few different ways. ひら is a common _kun'yomi_. Another one is
たいら, more commonly spelled 平ら with the ら as _okurigana_. The たいら reading
itself derives from prefix た- (as in たやすい) + ひら. The た- prefix is described in
some dictionaries as simply 「語調を整える」 ("adjusts the tone"), but it might come
from た as the oldest known reading for 手 ("hand").

Both ひら and たいら mean "flat". Combining the two into a name ひらたいら could suggest
something very flat. I'm not familiar with the anime _Non non biyori Repeat_ ,
but Triops is also known in English as a ["tadpole
shrimp"](https://en.wikipedia.org/wiki/Triops), and this appears to be
[カブトエビ](https://ja.wikipedia.org/wiki/%E3%82%AB%E3%83%96%E3%83%88%E3%82%A8%E3%83%93)
in standard Japanese. These look a bit like a cross between a [horseshoe
crab](https://en.wikipedia.org/wiki/Horseshoe_crab) and a shrimp or lobster.

