Related Clues:

• Lengthen (with "to")
• Ancient pyramid builders
• Word found on a dipstick
• Also say
• Cookbook verb
• Toss in
• Toss into the mix
• Verb used in recipes
• Gibe, with 'up'
• Keep talking
• Count up
• Factor a sum
• Figure a sum
• Interject
• Way to check the check