A lot vs. Alot: 9 Grammatical Pitfalls
before vowels, hol-, word-forming element meaning "whole, entire, complete," from Greek holo-, comb. form of holos "whole, entire, complete," also "safe and sound," from PIE *sol-wo-, from root *sol- (see safe (adj.)).
holo- or hol-
Whole; entirely: holoblastic.