- haplo-
[haplo- 词源字典]
- before vowels hapl-, word-forming element meaning "simple, single; simply, once," from comb. form of Greek haploos, haplous "single, simple" (as opposed to "compound"); "natural, plain," from PIE compound *sm-plo-, from *sem- (1) "one; as one; together with" (see same) + *-plo- "-fold."[haplo- etymology, haplo- origin, 英语词源]