凝
ギョウ, こ.る, こ.らす, こご.らす, こご.らせる, こご.る

congeal, freeze, stiff, be absorbed in

JLPT1 G7 S16 F1712

As per 疑# (come to a stop) + 氷 ice → flowing water coming to a stop in hardening into ice → *rigidity*; *concentration*; *stiff*. *Strain*, *be absorbed in*, *fix attention on* and *elaborate* (v.) are extended meanings.

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