Whole, complete, the entirety
Holo- comes from Greek "holos" (whole, entire, complete) and appears in advanced science and philosophy alike. Hologram = a complete three-dimensional image (holo- + gramma); holistic = considering the whole, not only the parts; holocaust = total destruction (holo- + kaustos = burned); holography = the technique for creating holograms; Holocene = current geological epoch ("entirely recent"). The Spanish equivalent is the same prefix: holo-.