The name Dainow (European version) was translated to Dinoff (pronounce the "i" long) after Phillip came to America. He and his children used it after they arrived.
Hebrew: דיינאוו
Russian = Дайнов
Translation Pronunciation: DAYNOV
NARA Soundex code: 510
Daitch-Mokotoff: 367000
Gematria absolute value: 87
Possible alternative spelling name: DAINOW, DAINOV, DIINAOO, DAJNOW, DAJNOV, DANOV, DAYNAV, DAYANOV, DAYNOV, DEINAV, DEYNOV, DIENOV, DINOV, DYNOV, DOJNOV, DYNOV, DOYNOV, DOYINAV, TSIENOV, DYNOV
Name possibly origin:
Dinov (Yiddish: דינאָוו, Hebrew: דינוב) is the name of a Hasidic dynasty, descended from Rabbi Tzvi Elimelech Spira of Dinov (c. 1783 – 1841), also called "the Bnei Yisaschar" after his popular work: בני יששכר [Bene Yiśaśkhar]. Dinov is the Yiddish name of Dynów, a town in southern Poland, in the historic region of Galicia.
Dynów ([ˈdɨnuf]) (Ukrainian: Динів, Latin: Dinoum, Yiddish: דינאוו) is a small town in Rzeszów County, Subcarpathian Voivodeship, Poland, with a population of 6,058 (02.06.2009).
From the Dictionary of Jewish Surnames in Russian Empire
Dajon (Bia€ystok) O: dajon, dajijn [Hebrew] judge, rabbi's assistant {Daen (Doven), Daenchik (Danchik, Dajchik), Daenman, Daenzon, Dain (Davin, Dovin), Dainzon, Daion, Dajen, Dajn (Tajn), Dajnman (Dajman), Dajnov(Dojnov), Dajnovich (Tajnovich, Tejnovich, Tynovich), Dayan, Dayanov; Dajno (Dojno, Dujno), Dajna, Daneman, Daniman, Danneman}.
Din O: dijn [Hebrew] court of justice. N: din(er) [Yiddish] thin {Diner (Dinor, Tinner), Dinerman, Dinov, Dynov, Dyner}.
Jewish Family Names and Their Origins: An Etymological Dictionary
Dayan (דיין) is a Hebrew surname. It means a Jewish religious judge in a Beth din—a position conferring social prestige in a traditional Jewish community, and therefore one whose memory is likely to be retained as a family's surname even after the passage of many generations. Wikipedia
Dayan - Surnames Believed to Be of Davidic Descent. Davidic Dynasty
From American Last Name
Meaning: Male name DINOFF is a Latin spelling of its Cyrillic origins 'ДИНОВ' (for the male) and 'ДИНОВА' (for its female versions). Below are some other possible Latin spellings of the Cyrillic versions of these names.
Male versions of the name: 'DINOV' 'DINOW' 'DINOFF'
Female versions of the name: 'DINOVA' 'DINOWA' .
Origin: Belarusian
The word Dainow, or Dinoff in Hebrew has the word Daled, Yud, Nun, which makes up the word Dayin, or Judge. Speculate from this that ancestrally we derived the last name as someone was the Jewish court judge within our family. Commonly surnames were developed by their occupation. I believe would mean sitting judge.