Learn how to say Discernability correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word discern:
recognize or find out:
I can discern no difference between the two policies
pupils quickly discern what is acceptable to the teacher
distinguish (someone or something) with difficulty by sight or with the other senses:
she could faintly discern the shape of a skull
late Middle English: via Old French from Latin discernere, from dis- ‘apart’ + cernere ‘to separate’
Remember that discern is spelled with -sc- in the middle.
I discerned six cats in the garden.