chrezo

χρῄζετε [3 verses](verb 2nd pl pres ind act) "Have need" is from chrezo, which means "want", "lack", "have need of", "desire", "long for", "crave", "if one will", "if one chooses," and, as an adjective, "needy," and "poor."  - The verb translated as "need" means "want", "lack", "have need of", and "desire". Again, it is in the present tense. Notice how its meaning overlaps with the earlier verb translated as "seek after". The KJV doesn't reflect this, but it seems important. Both "need" and "want" combine its sense of a lack and a desire.