Meaning: Hill with a ridge
Gender: Male
Pronunciation: On-Sloh
Language origin of Onslow: Germanic
Regional origin of Onslow: Northern Europe
Languages Onslow is most common: English
Religions Onslow is most common: Christianity
First letter and sound: O, On
Last letter and sound: W, sloh
Alternative Spelling: Onson, Olsson, Osnlow