A primitive root; to flatten out or extend (as a tent); figuratively, to nurse a child (as promotive of growth); or perhaps a denom. From tephach, from dandling on the palms -- span, swaddle.
see HEBREW tephach
H2946. taphach
[טָפַח] verb extend, spread (Arabic be full to overflowing, abound; Aramaic extend, spread; טְפוּחָא a step, foot-length; Late Hebrew טֶפַח a span (compare טֶפַח below)) —
Pi`el Perfect טִמְּחָה Isaiah 48:13; טִמַּחְתִּי Lamentations 2:22; —
1 spread out the heavens Isaiah 48:13 ("" ארץ יָסְדָה).
2 denominative from טֶפַח carry on the palms, dandle Lamentations 2:22 ("" רִבִּיתִי I have brought up, reared).