Let a little
m`at (meh-at')
a little or few (often adverbial or compar.) -- almost (some, very) few(-er, -est), lightly, little (while), (very) small (matter, thing), some, soon, very.
water
mayim (mah'-yim)
water; figuratively, juice; by euphemism, urine, semen -- + piss, wasting, water(-ing, (-course, -flood, -spring).
I pray you
na' (naw)
added mostly to verbs (in the Imperative or Future), or to interjections, occasionally to an adverb or conjunction -- I beseech (pray) thee (you), go to, now, oh.
be fetched
laqach (law-kakh')
to take (in the widest variety of applications)
and wash
rachats (raw-khats')
to lave (the whole or a part of a thing) -- bathe (self), wash (self).
your feet
regel (reh'-gel)
a foot (as used in walking); by implication, a step; by euphem. the pudenda -- be able to endure, according as, after, coming, follow, (broken-)foot(-ed, -stool), great toe, haunt, journey, leg, piss, possession, time.
and rest yourselves
sha`an (shaw-an')
to support one's self -- lean, lie, rely, rest (on, self), stay.
under the tree
`ets (ates)
a tree (from its firmness); hence, wood (plural sticks) -- + carpenter, gallows, helve, + pine, plank, staff, stalk, stick, stock, timber, tree, wood.