Prot.

Protestant

proto- /prō-tō-/ or, before a vowel, prot- /prōt-/

1. Denoting: first
2. First of a series
3. First-formed
4. Primitive
5. Ancestral
6. A (specified) protolanguage (linguistics)

• groundspeeds
• ground squirrel
• ground squirrels
• ground staff
• ground state
• ground states
• ground storey
• ground stroke
• ground strokes
• groundswell
• groundswells
• ground tackle
• ground tackles
• ground-to-air
• ground water
• ground waters
• ground wave
• ground waves
• groundwork
• groundworks
• ground zero
• group
• groupable
• groupage
• groupages