νῆστιςnēstis

Same root

• ἐσθίωesthíō · G2068used only in certain tenses, the rest being supplied by G5315 (φάγω); to eat (usually literal)
• νηστεύωnēsteúō · G3522to abstain from food (religiously)

Where it appears

Appears 2 times in the Bible.

• Matthew 15:32 Then Jesus called his disciples and told them, “I feel sorry for these people. They have been here with me for three days, and they have nothing left to eat. I don’t want to send them away hungry, or they will faint along the way.”
• Mark 8:3 If I send them home hungry, they will faint along the way. For some of them have come a long distance.”