lade vs surcharge

lade is not a noun while surcharge is a noun.

Word	Noun	Adjective	Verb	Adverb
lade	No	No	Yes	No
surcharge	Yes	No	Yes	No

As verbs, surcharge is a hyponym of lade; that is, surcharge is a word with a more specific, narrower meaning than lade:

Other hyponyms of lade include load down, pack, bomb up, overcharge, overload, reload, stack.

lade (noun)	surcharge (noun)
	an additional charge (as for items previously omitted or as a penalty for failure to exercise common caution or common skill)

lade (verb)	surcharge (verb)
fill or place a load on	show an omission in (an account) for which credit ought to have been given
remove with or as if with a ladle	fill to an excessive degree
	place too much a load on
	print a new denomination on a stamp or a banknote
	fill to capacity with people
	rip off; ask an unreasonable price
	charge an extra fee, as for a special service