"somewhat weakened" — Kollokationen-Wörterbuch Englisch

somewhat weakened Kollokation
Automatische Übersetzung (wir garantieren seine Korrektheit nicht): nieco osłabić
  1. weaken Verb + somewhat Adverb
    Schwache Kollokation

    But I could see some discoloration, and knew they had been weakened somewhat.