When you are feeling really shy and intimidated and you can't get words out and so you say "I th... th... th... think," this is an example of a time when you stammer.
Origin of stammerMiddle English stameren from Old English stamerian, akin to Dutch stameren, frequentative formation from Indo-European base an unverified form stem-, to stumble in speech, halt from source stem, stumble, German stumm, dumb
verbstam·mered, stam·mer·ing, stam·mers
Origin of stammerMiddle English stameren from Old English stamerian
(third-person singular simple present stammers, present participle stammering, simple past and past participle stammered)
- To keep repeating a particular sound involuntarily during speech.
- The involuntary repetition of a sound in speech.
From Old English stamerian. Cf. German stammeln.