What word or phrase does your mother always say?
c.1300, "rear, back," perhaps a back-formation from Old English behindan "back, behind," used as adverb and preposition, or from or influenced by Old English hindan (adv.) "from behind," from Proto-Germanic *hind- "behind" (cognate with Gothic hindan (prep.) "on that side of, beyond, behind;" German hinten "behind"), of unknown origin. Possibly influenced by Middle English hiner (adv.) "back, rear."
"female deer," Old English hind, from Proto-Germanic *hinthjo- (cf. Old Norse hind, Dutch hinde, Old High German hinta, German Hinde "hind") perhaps from PIE *kemti-, from root *kem- "hornless" (cf. Greek kemas, Lithuanian smulas "young deer, gazelle").
Heb. 'ayalah (2 Sam. 22:34; Ps. 18:33, etc.) and 'ayeleth (Ps. 22, title), the female of the hart or stag. It is referred to as an emblem of activity (Gen. 49:21), gentleness (Prov. 5:19), feminine modesty (Cant. 2:7; 3:5), earnest longing (Ps. 42:1), timidity (Ps. 29:9). In the title of Ps. 22, the word probably refers to some tune bearing that name.