There are several prefixes that do not demand a hyphen. These are generally called signed up having prefixes.
One example is definitely re-, as said ahead of within?a previous article entitled "How to Do some form of Replace."
Here are some people with examples:
| Joined Prefix | Examples: |
| co- | coauthor, codevelop, cofounder, directly together with, cosurfactant, coworker |
| counter- | counteract, counterintuitive. opposite number, counterpressure, counterweight |
| down- | downcast, downdip, alpine, downhole, downright, negative aspect, downtime |
| electro- | electrochemical, electrohydraulic, electrokinetic, electromagnetic |
| extra- | extracurricular, extrajudicial, adulterous, amazing, extraterrestrial |
| inter- | interbedded, interdependence, intergranular, interlaminar, interplay |
| micro- | microampere, microcircuit, microeconomics, micromanage, microseismic |
| mid- | midday, midfield, midpoint, midsection, midstream, midterm, midyear |
| multi- | multiaxial, multibillion, multicomponent, multilevel, multiyear |
| over- | overburden, overanalyze, overconfident, overestimate, overinflate, oversee |
| poly- | polycarbonate, polycrystalline, polycyclic, polyphasic, polytheism |
| pre- | predrill, premeasured, premerger, preproduction, prepay, prequalify, pretreat |
| pro- | proactive, procreate, proenzyme, prograde, prolapse, prorated |
| pseudo- | pseudodifferential, pseudoscience |
| semi- | semiannual, semiconductor, semifinal, semiformal, semisubmersible |
| sub- | subcategory, sublevel, subscale, subsea, subsector, subtopic |
| super- | superachiever, superhero, supermodel, supersize, keep, supertanker |
| ultra- | ultraclean, ultracompact, ultradeep, ultrafine, ultralightweight, ultraviolet |
| un- | unbroken, whole, unheated, uninterrupted, blemish-free, unsaturated |
| under- | underarm, underbid, underbrush, underburden, ignore, underwater |
| up- | upbuild, upcoming, updip, enrich, uphole, maintenance, uplift, upriver, upwind |
But nix-nix on the by using "pre-planning." By definition, arranging only works ahead of time as well as in advance, so pre-planning might be well not required. Don't let my children capture you using the services of that.