objure /ob-joorˈ/

To swear

1. To bind by oath
2. To charge or entreat solemnly

objurāˈtion noun

1. The act of binding by oath
2. A solemn charge

• not know a B from a bull's foot
• not know chalk from cheese
• not know if one is coming or going
• not know one's arse from one's elbow
• not know someone from Adam
• not know the first thing about
• not lift a finger
• not likely
• not long for this world
• not make head or tail of
• not much chop
• not much cop
• not much of a
• not much to choose between
• not much to look at
• not my idea of
• notochord
• notochordal
• notochords
• Notodonta
• notodontid
• Notodontidae
• notodontids
• Notogaea
• Notogaean