Meaning of 至弱っ強 in Japanese

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Definition of 至弱っ強

つよい(tsuyoi) 【強い】

(adj-i) strong; powerful; mighty; potent
resistant; resilient; durable
この布地は洗濯に強い。
This material will stand up to lots of washings.

よわる(yowaru) 【弱る】

(v5r, vi) to weaken; to be troubled; to be downcast; to be emaciated; to be dejected; to be perplexed; to impair
彼は寄る年波で弱った。
He sank under the weight of age.

こわい(kowai) 【強い】

し(shi) 【至】