"Extern" is a word in ENGLISH

Semblance, or apparent likeness; external show. pl. Outward signs, or circumstances, fitted to make a particular impression or to determine …

The outward surface or part of a thing; that which is external; outside.

Outward or external deportment, form, or ceremony; visible act; as, the exteriors of religion.

External; outward; pertaining to that which is external; -- opposed to interior; as, the exterior part of a sphere.

Outwardly; externally; on the exterior.

Outwardly perceptible; visible; physical or corporeal, as distinguished from mental or moral.

Outward; exterior; relating to the outside, as of a body; being without; acting from without; -- opposed to internal; as, …

Something external or without; outward part; that which makes a show, rather than that which is intrinsic; visible form; -- …

To make external; to manifest by outward form.

In an external manner; outwardly; on the outside; in appearance; visibly.

Not contained in or belonging to a body; external; outward; unessential; -- opposed to intrinsic.

One overattentive to forms, or too much confined to them; esp., one who rests in external religious forms, or observes …

gwâ - That is outside, exterior, outward, without, external, on the surface, superficial, apparent, forthcoming; upshot, outcome, result, final issue, …

Of or pertaining to an object; contained in, or having the nature or position of, an object; outward; external; extrinsic; …

Being on the extreme external part; farthest outward; as, the outermost row.

An external or superficial thing; outward manner; superficial remark, etc.

Forming the superficial part; external; exterior; -- opposed to inward; as, an outward garment or layer.

Of or pertaining to the outer surface or to what is external; manifest; public.

External form; exterior.

Character or construction of a thing as determining its external appearance; outward aspect; make; figure; form; guise; as, the shape …