Agureyev

Agureyev (; masculine) or Agureyeva (; feminine) is a Russian last name. Variants of this last name include Agureykin/Agureykina (/), Ogureyev/Ogureyeva (/), Ogurenkov/Ogurenkova (/), Oguryayev/Oguryayeva (/), and possibly Ogurtsov/Ogurtsova (/).
There are three theories as to the origins of these last names. According to the first one, they derive from the Russian dialectal verb " ()—or " ("aguret") in dialects with "akanye"—meaning "to disobey". This and related dialectal words "" ("ogur"), meaning "stubbornness", "laziness"; "" (), meaning "a stubborn idler", "a slacker"; and "" ("oguryatsya"), meaning "to slack off", gave birth to nicknames "" ("Ogurey") and "" ("Oguryay"), as well as "" ("Agurey") and "" ("Agureyka") in dialects with "akanye".
According to another theory, this last name derives from the first name Gury, a form of which is "Gurey". The latter eventually transformed to "Agureyev"/"Ogureyev", as adding a vowel made pronunciation easier.
Finally, it is also possible that these last names (and especially "Ogurtsov") derive from the nickname "" ("Ogurets"), which in some dialects has the same meaning as "Ogurey" and its variants above, but also literally means "cucumber". The latter possibility, however, is discounted by some researchers.